Small specimen mechanical testing is an exciting and rapidly developing field in which fundamental deformation behaviours can be observed from experiments performed on comparatively small amounts of material. These methods are particularly useful when there is limited source material to facilitate a sufficient number of standard specimen tests, if any at all. Such situations include the development of new materials or when performing routine maintenance/inspection studies of in-service components, requiring that material conditions are updated with service exposure. The potentially more challenging loading conditions and complex stress states experienced by small specimens, in comparison with standard specimen geometries, has led to a tendency for these methods to be used in ranking studies rather than for fundamental material parameter determination. Classifying a specimen as ‘small’ can be subjective, and in the present work the focus is to review testing methods that utilise specimens with characteristic dimensions of less than 50 mm. By doing this, observations made here will be relevant to industrial service monitoring problems, wherein small samples of material are extracted and tested from operational components in such a way that structural integrity is not compromised. Whilst recently the majority of small specimen test techniques development have focused on the determination of creep behaviour/properties as well as sub-size tensile testing, attention is given here to small specimen testing methods for determining specific tensile, fatigue, fracture and crack growth properties. These areas are currently underrepresented in published reviews. The suitability of specimens and methods is discussed here, along with associated advantages and disadvantages.
DysonCCSunWHydeCJ, et al. Use of small specimen creep data in component life management: a review. Mater Sci Technol2016; 32(15): 1567–1581.
2.
HydeTHSunWWilliamsJA. Requirements for and use of miniature test specimens to provide mechanical and creep properties of materials: a review. Int Mater Rev2007; 52(4): 213–255.
3.
RouseJPCortellinoFSunW, et al. Small punch creep testing: review on modelling and data interpretation. Mater Sci Technol2013; 29(11): 1328–1345.
4.
HosemannPShinCKienerD. Small scale mechanical testing of irradiated materials. J Mater Res2015; 30(9): 1231–1245.
5.
ConnolleyTMchughPEBruzziM. A review of deformation and fatigue of metals at small size scales. Fatigue Fract Eng Mater2005; 28(12): 1119–1152.
6.
ZhengPChenRLiuH, et al. On the standards and practices for miniaturized tensile test – a review. Fusion Eng Des2020; 161: 112006.
7.
KolhatkarAKarthikVChaitanyaGMSK, et al. Development and validation of a miniature tensile specimen for determination of mechanical properties. J Test Eval2019; 47(5): 3417–3431.
8.
LordJDRoebuckBMorrellR, et al. 25 year perspective: aspects of strain and strength measurement in miniaturised testing for engineering metals and ceramics. Mater Sci Technol2010; 26(2): 127–148.
9.
ArunkumarS. Overview of small punch test. Metal Mater Int2020; 26(6): 719–738.
LuconE. Testing of small-sized specimens. Compr Mater Process2014; 1: 135–163.
12.
LiuHChenRWenM, et al. Optimizing parallel section length for small tensile specimen with fabrication non-uniformity in thickness. Fusion Eng Des2019; 147: 111244.
13.
LucasGEOdetteGRSheckherdJW. The use of small-scale specimens for testing irradiated material, ASTM STP S88. In: American society for testing and materials, Philadelphia, PA, 8–13 June 1986, pp.112–140.
14.
AlegreJMCuestaII. Determination of the fracture toughness of the 15.5-PH steel using pre-cracked small punch tests. In: 18th European conference on fracture: fracture of materials and structures from micro to macro scale, Dresden, Germany, 30 August–3 September 2010.
15.
AbediHRZarei-HanzakiAKarimiE, et al. The shear punch jump test—a novel application of a small specimen testing technique for rapid evaluation of deformation mechanisms. Exp Mech2015; 55(8): 1569–1573.
16.
AbendrothMKunaM. Determination of ductile material properties by means of the small punch test and neural networks. Adv Eng Mater2004; 6(7): 536–540.
17.
AbendrothMKunaM. Identification of ductile damage and fracture parameters from the small punch test using neural networks. Eng Frac Mech2006; 73(6): 710–725.
18.
AbendrothMSoltysiakS. Assessment of material properties by means of the small punch test. In: Recent trends in fracture and damage mechanics. London: Springer Nature, 2016, pp.127–157.
19.
AltstadtESerranoMHouskaM, et al. Effect of anisotropic microstructure of a 12Cr-ODS steel on the fracture behaviour in the small punch test. Mater Sci Eng A Struct2016; 654: 309–316.
20.
ArunkumarSPrakashRV. Estimation of tensile properties of pressure vessel steel through automated ball indentation and small punch test. Trans Indian Inst Met2016; 69(6): 1245–1256.
21.
AssasMMHusainASehgalDK. Identification of mechanical characteristics of materials using diminutive specimen-an empirical study. Procedia Eng2011; 10: 3109–3116.
22.
DíezPMCalzadaMPGonzaloDC, et al. Change of mechanical properties of AM60B alloy with heat treatments and its correlation with small punch tests. Theor Appl Fract Mech2016; 86(A): 101–108.
23.
BřezinaMPetzováJKupčaL, et al. Utilization of SPT techniques for evaluation of changes in the properties of the VVER-440 reactor pressure vessel steels after their irradiation in the research and power reactors. In: ASME 2015 pressure vessels and piping conference. American Society of Mechanical Engineers Digital Collection, Boston, Massachusetts, USA, 19 July–23 july 2015. 2015, vol. 1A.
24.
BruchhausenMLapetiteJ-MRipplingerS, et al. Small punch tensile/fracture test data and 3D specimen surface data on Grade 91 ferritic/martensitic steel from cryogenic to room temperature. Data Brief2016; 9(Suppl. C): 245–251.
25.
BruchhausenMHolmströmSSimonovskiI, et al. Recent developments in small punch testing: tensile properties and DBTT. Theor Appl Fract Mech2016; 86: 2–10.
26.
BudzakoskaECarrDGStathersPA, et al. Predicting the J integral fracture toughness of Al 6061 using the small punch test. Fatigue Fract Eng Mater2007; 30(9): 796–807.
27.
BullochJH. The small punch toughness test: some detailed fractographic information. Int J Pres Ves Pip1995; 63(2): 177–194.
28.
BullochJH. A review of the ESB small punch test data on various plant components with special emphasis on fractographic details. Eng Fail Anal2002; 9(5): 511–534.
29.
BullochJH. A study concerning material fracture toughness and some small punch test data for low alloy steels. Eng Fail Anal2004; 11(4): 635–653.
30.
CheonJSKimIS. Evaluation of thermal aging embrittlement in CF8 duplex stainless steel by small punch test. J Nucl Mater2000; 278(1): 96–103.
31.
CuestaIIAlegreJMBarbáchanoH. Use of the Gurson-Tvergaard-Needleman (GTN) damage model to simulate small punch test on pre-cracked specimens [Aplicación del modelo de daño de Gurson-Tvergaard-Needleman (GTN) para la simulación del ensayo miniatura de punzonado sobre probetas prefisuradas]. Rev Metal Madrid2010; 46(Extra): 53–63.
32.
CuestaIIAlegreJM. Hardening evaluation of stamped aluminium alloy components using the small punch test. Eng Fail Anal2012; 26: 240–246.
33.
DaviesSJeffsSLancasterR, et al. High temperature deformation mechanisms in a DLD nickel superalloy. Materials2017; 10(5): 457.
34.
FernándezMRodríguezCBelzunceFJ, et al. Mechanical behaviour estimation of synchronizer hubs using miniaturized specimens. In: Proceedings Euro PM 2015: international power metallurgy congress and exhibition, Reims, France, 4–7 October 2015.
35.
FleuryEHaJS. Small punch tests to estimate the mechanical properties of steels for steam power plant: I. Mechanical strength. Int J Pres Ves Pip1998; 75(9): 699–706.
36.
FouldsJViswanathanR. Determination of the toughness of in-service steam turbine disks using small punch testing. J Mater Eng Perform2001; 10(5): 614–619.
37.
GarcíaTERodríguezCBelzunceFJ, et al. Estimation of the mechanical properties of metallic materials by means of the small punch test. J Alloy Compd2014; 582: 708–717.
38.
GarcíaTERodríguezCBelzunceFJ, et al. Development of a methodology to study the hydrogen embrittlement of steels by means of the small punch test. Mater Sci Eng A Struct2015; 626: 342–351.
39.
GarcíaTEArroyoBRodríguezC, et al. Small punch test methodologies for the analysis of the hydrogen embrittlement of structural steels. Theor Appl Fract Mech2016; 86: 89–100.
40.
GeHHuangQXinJ, et al. Small specimen test techniques applied to evaluate the mechanical properties of CLAM steel. J Fusion Energy2015; 34(5): 1124–1128.
41.
GuanKHuaLWangQ, et al. Assessment of toughness in long term service CrMo low alloy steel by fracture toughness and small punch test. Nucl Eng Des2011; 241(5): 1407–1413.
42.
GuanKSzpunarJAMatochaK, et al. Study on temper embrittlement and hydrogen embrittlement of a hydrogenation reactor by small punch test. Materials2017; 10(6): 671.
43.
HaJSFleuryE. Small punch tests to estimate the mechanical properties of steels for steam power plant: II. Fracture toughness. Int J Pres Ves Pip1998; 75(9): 707–713.
44.
HuRLingX. Three-dimensional numerical simulation on plastic damage in small punch specimen of Zirconium. Int J Pres Ves Pip2009; 86(12): 813–817.
45.
HurstRCMatochaK. A Renaissance in the use of the small punch testing technique. In: ASME pressure and piping conference - 2015. Boston, Massachusetts, USA, 19 July–23 July 2015.
46.
HusainASehgalDKPandeyRK. An inverse finite element procedure for the determination of constitutive tensile behavior of materials using miniature specimen. Comp Mater Sci2004; 31(1–2): 84–92.
47.
IsselinJShojiT. Yield strength evaluation by small-punch test. J Test Eval2009; 37(6): 531–537.
48.
KannanCBhattacharyaSSehgalDK, et al. Effect of specimen thickness and punch diameter in evaluation of small punch test parameters toward characterization of mechanical properties of Cr-Mo steels. J Test Eval2014; 42(6): 1501–1509.
49.
KarthikVLahaKParameswaranP, et al. Small specimen test techniques for estimating the tensile property degradation of mod 9Cr-1Mo steel on thermal aging. J Test Eval2007; 35(4): 438–448.
50.
KlevtsovIDedovAMolodtsovA. Measurement of the tensile and yield strength of boiler steels by small punch and tensile test methods [aurukatlateraste tõmbetugevuse ja voolepiiri mõõtmine kuuliga surumise ning tõmbekatse meetodil]. Estonian J Eng2009; 15(2): 99–107.
51.
KonopikPDzuganJRundM. Determination of fracture toughness in the upper shelf region using small sample test techniques. In: Metal 2015: 24th international conference on metallurgy and materials, Brno, Czech Republic, 3–5 June 2015, pp.710–715.
52.
KumarKPooleeryAMadhusoodananK, et al. Evaluation of ultimate tensile strength using miniature disk bend test. J Nucl Mater2015; 461: 100–111.
53.
LacalleRÁlvarezJAGutiérrez-SolanaF. Analysis of key factors for the interpretation of small punch test results. Fatigue Fract Eng Mater2008; 31(10): 841–849.
54.
LinseTKunaM. Characterization of reactor vessel steels in the brittle-ductile transition region. In: 17th European conference on fracture 2008: multilevel approach to fracture of materials, components and structures, Brno, Czech Republic, 2–5 September 2008, vol. 1, pp.765–772.
55.
LinseTKunaMSchuhknechtJ, et al. Application of the small-punch test to irradiated reactor vessel steels in the brittle-ductile transition region. J ASTM Int2008; 5(4): 101008.
56.
LinseTKunaMViehrigH-W. Quantification of brittle-ductile failure behavior of ferritic reactor pressure vessel steels using the small-punch-test and micromechanical damage models. Mater Sci Eng A Struct2014; 614: 136–147.
57.
MadiaMFolettiSCammiA, et al. Characterization of the fracture behaviour of a turbine rotor steel by means of the small punch test. In: 18th European conference on fracture: fracture of materials and structures from micro to macro scale, Dresden, Germany, 30 August–3 September 2010.
58.
MakJWeiTWuhrerR, et al. A solution for estimating the tensile yield strength from small specimens. J Test Eval2013; 41(4): 647–650.
59.
MiličkaKDobešF. Small punch testing of P91 steel. Int J Pres Ves Pip2006; 83(9): 625–634.
60.
NorrisSDParkerJD. Deformation processes during disc bend loading. Mater Sci Technol1996; 12(2): 163–170.
61.
PrakashRVSubbiahA. Evaluation of fatigue data through miniature specimen test techniques. In: ASME 2015 pressure vessels and piping conference. American Society of Mechanical Engineers Digital Collection, Boston, Massachusetts, USA. 19 July–23 July 2015.
62.
PrakashRVArunkumarS. Influence of friction on the response of small punch test. Trans Indian Inst Met2016; 69(2): 617–622.
63.
PrakashRVRameshTRajuN, et al. Correlation of tensile properties of pressure vessel steels by shear punch and small punch test methods. In: International mechanical engineering congress and exposition - 2012, Vol 3, Pts A-C: design, materials and manufacturing, Houston, Texas, USA, 9 November–15 November 2012. pp.635–640.
64.
RameshTPrakashRVSureshS, et al. Evaluation of tensile properties of pressure vessel materials by shear punch test method. Appl Mech Mater2012; 187: 53–57.
65.
RodríguezCCabezasJGCárdenasE, et al. Mechanical properties characterization of heat-affected zone using the small punch test. Weld J2009; 88(9): 188–192.
66.
SandersMDi BellaFLiangH. Small-scale mechanical characterization of aluminum and titanium alloys. J Test Eval2011; 39(1): 9–15.
67.
Saucedo-MuñozMLHashidaTLopez-HirataVM. Correlationship between J ICand equivalent fracture strain determined by small-punch test in JN1 JJ1 an JK2 austenitic stainless steels. In: TMS annual meeting, Orlando, FL, 11–15 March 2012, pp.487–494.
68.
SieglJHaušildPJančaA, et al. Characterisation of mechanical properties by small punch test. Key Eng Mater2014; 606: 15–18.
69.
SimonovskiIHolmströmSBruchhausenM. Small punch tensile testing of curved specimens: finite element analysis and experiment. Int J Mech Sci2017; 120(Suppl. C): 204–213.
70.
SongMGuanKQinW, et al. Size effect criteria on the small punch test for AISI 316L austenitic stainless steel. Mater Sci Eng A Struct2014; 606: 346–353.
71.
SunjayaDWeiTHarrisonR, et al. Finite element modelling of small punch test on 304H stainless steel. Key Eng Mater2007; 345–346: 1165–1168.
72.
SzávaiSRózsahegyiPDudraJ, et al. Determination of mechanical properties of operating components using instrumented hardness testing, small punch and small size tensile testing techniques. In: Lecture notes in mechanical engineering, New York, USA: Springer International Publishing, 2017, pp.135–150.
73.
WakaiEOhtsukaHMatsukawaS, et al. Mechanical properties of small size specimens of F82H steel. Fusion Eng Des2006; 81(8–14 Part B): 1077–1084.
74.
WangZ-XShiH-JLuJ, et al. Small punch testing for assessing the fracture properties of the reactor vessel steel with different thicknesses. Nucl Eng Des2008; 238(12): 3186–3193.
75.
YangSYangZLingX. Fracture toughness estimation of ductile materials using a modified energy method of the small punch test. J Mater Res2014; 29(15): 1675–1680.
76.
YeCVogtJ-BProriol SerreI. Liquid metal embrittlement of the T91 steel in lead bismuth eutectic: the role of loading rate and of the oxygen content in the liquid metal. Mater Sci Eng A Struct2014; 608: 242–248.
77.
CuestaIIWilligADíazA, et al. Pre-notched dog bone small punch specimens for the estimation of fracture properties. Eng Fail Anal2019; 96: 236–240.
78.
MaksimkinPRubanSVNurgalyYY, et al. Studying the changes in the mechanical properties of neutron-irradiated chromium-nickel steels using the “shear punch” method. Prob Atom Sci Technol2019; 120(2): 82–90.
79.
PrielEMittelmanBHaroushS, et al. Estimation of yield and ultimate stress using the small punch test method applied to non-standard specimens: a computational study validated by experiments. Int J Mech Sci2018; 135: 484–498.
80.
KonopikPProchazkaRRundM, et al. Novel methods for high-cycle fatigue life determination. Key Eng Mater2019; 810: 40–45.
81.
PhamHTIwamotoT. An evaluation of fracture properties of type-304 austenitic stainless steel at high deformation rate using the small punch test. Int J Mech Sci2018; 144: 249–261.
82.
RichardsonMDConnollySGorleyM, et al. Influence of surface finish on small punch testing of 9Cr Eurofer-97 steel. J Test Eval2020; 48(2): 1310–1318.
83.
LancasterRJJeffsSPIllsleyHW, et al. Development of a novel methodology to study fatigue properties using the small punch test. Mater Sci Eng A Struct2019; 748: 21–29.
84.
LewisDTSLancasterRJJeffsSP, et al. Characterising the fatigue performance of additive materials using the small punch test. Mater Sci Eng A Struct2019; 754: 719–727.
85.
KoprivaRBrumovskýMKytkaM, et al. Application of miniature small punch test specimen in determination of tensile properties. In: SokolovMLuconE (eds) Small specimen test techniques: 6th volume. West Conshohocken, PA: ASTM International, 2015, pp.1–8.
86.
AlegreJMCuestaIIBravoPM. Implementation of the GTN damage model to simulate the small punch test on pre-cracked specimens. Procedia Eng2011; 10: 1007–1016.
87.
CuestaIIAlegreJM. Determination of the fracture toughness by applying a structural integrity approach to pre-cracked small punch test specimens. Eng Frac Mech2011; 78(2): 289–300.
88.
CuestaIIAlegreJMLacalleR. Determination of the Gurson-Tvergaard damage model parameters for simulating small punch tests. Fatigue Fract Eng Mater2010; 33(11): 703–713.
89.
CuestaIIRodriquezCBelzunceFJ, et al. Analysis of different techniques for obtaining pre-cracked/notched small punch test specimens. Eng Fail Anal2011; 18(8): 2282–2287.
90.
GarcíaTERodríguezCBelzunceFJ, et al. Estimation of the fracture toughness of structural steels by means of the CTOD evaluation on notched small punch specimens. Proc Mater Sci2014; 3(Suppl. C): 861–866.
91.
GarcíaTERodríguezCBelzunceFJ, et al. Development of a new methodology for estimating the CTOD of structural steels using the small punch test. Eng Fail Anal2015; 50: 88–99.
92.
MatochaKDorazilOHurstR. The present SP tests for determining the transition temperature TSP on “U” notch disc specimens. Materials2017; 10(5): 87–93.
93.
XuYGuanK. Evaluation of fracture toughness by notched small punch tests with Weibull stress method. Mater Des2013; 51: 605–611.
94.
AlegreJMCuestaIIBarbachanoHL. Determination of the fracture properties of metallic materials using pre-cracked small punch tests. Fatigue Fract Eng Mater2015; 38(1): 104–112.
95.
LacalleRAndrésDÁlvarezJA, et al. Transition region of nuclear vessel steels: master curve approach using small punch notched specimens. Key Eng Mater2017; 734: 77–86.
96.
ArroyoBÁlvarezJALacalleR, et al. Using small punch tests in environment under static load for fracture toughness estimation in hydrogen embrittlement. In: IOP conference series: materials science and engineering, Busan, Korea, 25–27 August 2017, vol. 272.
97.
EckSJArdellAJ. Fracture toughness of Ti-46·5Al-2·1Cr-3·0Nb-0·2W from finite element analysis of miniaturized disk-bend test results. Intermetallics1998; 6(6): 471–477.
98.
TurbaKGülçimenBLiYZ, et al. Introduction of a new notched specimen geometry to determine fracture properties by small punch testing. Eng Frac Mech2011; 78(16): 2826–2833.
99.
JuJ-BKwonD. Assessment of fracture characteristics from revised small punch test using pre-cracked specimen. Metal Mater Int1998; 4(4): 742–746.
100.
GhoshSYadavSDasG. Ball indentation technique: a currently developed tool to study the effect of various heat treatments on the mechanical properties of EN24 steel. Mater Lett2008; 62(24): 3966–3968.
101.
GhoshSTarafderMSivaprasadS, et al. Experimental and numerical study of ball indentation for evaluation of mechanical properties and fracture toughness of structural steel. Trans Indian Inst Met2010; 63(2–3): 617–621.
102.
AwaleDDBallalARThawreMM, et al. Microstructural investigation and mechanical properties evaluation using miniature specimen testing of various constituents of dissimilar weld joint. J Nucl Mater2020; 532: 152048.
103.
Suresh KumarTNageshaAGanesh KumarJ, et al. Influence of thermal aging on tensile and low cycle fatigue behavior of type 316LN austenitic stainless steel weld joint. Metall Mater Trans A2018; 49(8): 3257–3273.
104.
NagarajuSGaneshKumarJVasantharajaP, et al. Evaluation of strength property variations across 9Cr-1Mo steel weld joints using automated ball indentation (ABI) technique. Mater Sci Eng A2017; 695: 199–210.
105.
PamnaniRKarthikVJayakumarT, et al. Evaluation of mechanical properties across micro alloyed HSLA steel weld joints using Automated Ball Indentation. Mater Sci Eng A2016; 651: 214–223.
106.
PrakashRVDhakaPPrasad ReddyGV, et al. Understanding the fatigue response of small volume specimens through novel fatigue test methods–experimental results and numerical simulation. Theor Appl Fract Mech2019; 103: 102304.
107.
PrakashRVThomasMPrakashAR, et al. Online acoustic emission monitoring of cyclic ball indentation testing - correlation with hysteresis area response. Procedia Struct Integrity2020; 28: 1629–1636.
108.
AmmarHRHaggagFMAlaboodiAS, et al. Nondestructive measurements of flow properties of nanocrystalline Al-Cu-Ti alloy using automated ball indentation (ABI) technique. Mater Sci Eng A2018; 729: 477–486.
109.
PuchninMTrudonoshynOPrachO, et al. Comparison of abi technique and standard methods in measuring mechanical properties of aluminium Al-aloys. Manuf Technol2016; 16(3): 37–38.
110.
WangFZhaoJZhuN. Constitutive equations and ann approach to predict the flow stress of ti-6al-4v alloy based on abi tests. J Mater Eng Perform2016; 25(11): 4875–4884.
111.
TrudonoshynOPuchninMPrachO. Use of the abi technique to measure the mechanical properties of aluminium alloys: effect of heat-treatment conditions on the mechanical properties of alloys. Materiali Tehnologije2016; 50(3): 427–431.
112.
PatilDCVenkateswarluKKoriSA, et al. Mechanical property evaluation of an Al-2024 alloy subjected to hpt processing, vol. 63. Bristol, England: Institute of Physics Publishing,2014.
113.
BarbadikarDRBallalARPeshweDR, et al. A study on the effect of tempering temperature on tensile properties of p92 steel by automated ball indentation technique. Procedia Eng2014; 86: 910–918.
114.
KulkarniRVMani KrishnaKVNeogyS, et al. Mechanical properties of Zr-2.5 to heat treatments in α+β phase field. J Nucl Mater2014; 451(1–3): 300–312.
115.
BrumekJStrnadelBDlouhýI. New approach to stress-strain curve prediction using ball indentation test. In: Pressure vessels and piping conference, Baltimore, MD, 17–22 July 2011, vol. 1, pp.1049–1054.
116.
KumarJGVijayanandVDLahaK. Finite element simulation of plastic deformation of 316LN stainless steel during automated ball indentation test. J Test Eval2020; 48(4): 2918–2935.
117.
LiBZhangSLiJ, et al. Quantitative evaluation of mechanical properties of machined surface layer using automated ball indentation technique. Mater Sci Eng A2020; 773: 138717.
118.
KumarJGLahaK. Influence of some test parameters on automated ball indentation test results. Exp Tech2018; 42(1): 45–54.
119.
DasMPalTKDasG. Use of portable automated ball indentation system to evaluate mechanical properties of steel pipes. Trans Indian Inst Met2012; 65(2): 197–203.
120.
CastelluccioGMYawnyAAPerez IpiñaJE, et al. In situ evaluation of tensile properties of heat-affected zones from welded steel pipes. Strain2012; 48(1): 68–74.
121.
ChenXLiuZHeG, et al. A novel integrated tension-compression design for a mini split Hopkinson bar apparatus. Rev Sci Instrum2014; 85(3): 035114.
122.
GussevMNHowardRHTerraniKA, et al. Sub-size tensile specimen design for in-reactor irradiation and post-irradiation testing. Nucl Eng Des2017; 320: 298–308.
123.
HayakawaMNakayamaEOkamuraK, et al. Development of micro-shear fatigue test and its application to single crystal of pure iron. Procedia Eng2016; 160: 167–174.
124.
HolländerDKulawinskiDWeidnerA, et al. Small-scale specimen testing for fatigue life assessment of service-exposed industrial gas turbine blades. Int J Fatigue2016; 92: 262–271.
125.
HolländerDKulawinskiDThieleM, et al. Investigation of isothermal and thermo-mechanical fatigue behavior of the nickel-base superalloy IN738LC using standardized and advanced test methods. Mater Sci Eng A Struct2016; 670: 314–324.
126.
KashaevNHorstmannMVentzkeV, et al. Comparative study of mechanical properties using standard and micro-specimens of base materials Inconel 625, Inconel 718 and Ti-6Al-4 v. J Mater Res Technol2013; 2(1): 43–47.
127.
KumarKPooleeryAMadhusoodananK, et al. Optimisation of thickness of miniature tensile specimens for evaluation of mechanical properties. Mater Sci Eng A Struct2016; 675: 32–43.
128.
MuraseYNagakawaJYamamotoN. In-beam fatigue behavior of 20300°c. Fusion Eng Des2006; 81(8–14 Part B): 999–1003.
129.
NakayamaEFukumotoMMiyaharaM, et al. Evaluation of local fatigue strength in spot weld by small specimen. Fatigue Fract Eng Mater2010; 33(5): 267–275.
130.
WangQZhangW. Fatigue life prediction of smooth and circular-hole specimens based on equivalent initial flaw size. In: Proceedings of 2015 the 1st international conference on reliability systems engineering, ICRSE 2015 (eds WangZZhangS), Beijing, China, 21–23 October 2015, pp.1–7.
131.
SakasegawaHChenXKatoT, et al. Strain evaluation using a non-contact deformation measurement system in tensile tests of irradiated F82H and 9Cr ODS steels. Nucl Mater Energy2018; 16: 108–113.
132.
VandermeulenWPuzzolanteJ-LScibettaM. Understanding of tensile test results on small size specimens of certified reference material BCR-661. J Test Eval2017; 45(2): 695–703.
133.
FernandinoDOBoeriREMassoneJM. Mechanism of damage of ferritic ductile iron, influence of matrix heterogeneity. Mater Sci Forum2018; 925: 288–295.
134.
LomakinIVArutyunyanARValievRR, et al. Design and evaluation of an experimental technique for mechanical and fatigue testing of sub-sized samples. Exp Mech2018; 42(3): 261–270.
135.
ŠpiritZChocholoušekMŠímaM. Mechanical testing of anisotropy in ODS steel tubes. In: IOP conference series: materials science and engineering, Busan, Korea, 25–27 August 2017, vol. 179.
136.
BaekJ-HByunTSMaloyS, et al. Investigation of temperature dependence of fracture toughness in high-dose HT9 steel using small-specimen reuse technique. J Nucl Mater2014; 444(1–3): 206–213.
137.
ByunTSMaloySAYoonJH. Small specimen reuse technique to evaluate fracture toughness of high dose HT9 steel. In: SokolovMALuconE (eds) ASTM Spec Tech Publ, vol. STP 1576. West Conshohocken, PA: ASTM International, 2015, pp.121–142.
138.
CastelluccioGMIpiñaJEPYawnyAA, et al. Fracture testing of the heat affected zone from welded steel pipes using an in situ stage. Eng Frac Mech2013; 98(1): 52–63.
139.
GaganidzeEAktaaJ. Use of the failure assessment diagram to deduce ductile fracture toughness of the RAFM steel EUROFER97. Int J Pres Ves Pip2009; 86(6): 345–350.
140.
HojnaADi GabrieleFHadrabaH, et al. Fracture behaviour of the 14Cr ODS steel exposed to helium and liquid lead. J Nucl Mater2017; 490: 143–154.
141.
KovarikOJancaASieglJ. Fatigue crack growth rate in miniature specimens using resonance. Int J Fatigue2017; 102: 252–260.
142.
KurishitaHKayanoHNaruiM, et al. Effects of V-notch dimensions on charpy impact test results for differently sized miniature specimens of ferritic steel. Mater Trans JIM1993; 34(11): 1042–1052.
143.
KurishitaHYamamotoTNagasakaT, et al. Fracture toughness of JLF-1 by miniaturized 3-point bend specimens with 3.3-7.0 mm thickness. Mater Trans2004; 45(3): 936–941.
144.
LeeB-SHongJ-HYangW-J, et al. Master curve characterization of the fracture toughness in unirradiated and irradiated RPV steels using full- and 1/3-size pre-cracked charpy specimens. Int J Pres Ves Pip2000; 77(10): 599–604.
145.
MahalingamSFlewittPEJKnottJF. The ductile-brittle transition for nominally pure polycrystalline nickel. Mater Sci Eng A Struct2013; 564: 342–350.
146.
RayKK. Simpler estimation of fracture toughness during material development, process optimization and quality control of structural materials. Mater Sci Forum2013; 736: 192–206.
147.
SerranoMFernándezPLapeñaJ. Fracture toughness evaluation of Eurofer97 by testing small specimens. In: ASTM Spec Tech Publ, 2009, vol. 1502 STP, pp.114–121. American Society for Testing and Materials. California, USA, 31 January–1 February, 2007.
148.
WunderJKarlADwarsA, et al. Instrumented impact test of duplex stainless steel miniature specimen. Materialwiss Werkst2013; 44(9): 797–803.
149.
KravchukAVKondryakovEOPanasenkoOV, et al. Determination of the temperature dependences of the fracture energy components of specimens of various types in impact bending tests. Strength Mater2017; 49(6): 809–817.
150.
RuggieriC. A modified local approach including plastic strain effects to predict cleavage fracture toughness from subsize precracked Charpy specimens. Theor Appl Fract Mech2020; 105: 102421.
151.
ČernýIMikulováDFürbacherI. Fatigue strength and failure mechanisms of nitrided small parts of a 30CrMoV9 steel. Mater Manuf Proces2011; 26(1): 1–6.
152.
HiroseTTanigawaHAndoM, et al. Small specimen test technology for evaluation of fatigue properties of fusion structural materials. Mater Trans2001; 42(3): 389–392.
153.
KingALudwigWHerbigM, et al. Three-dimensional in situ observations of short fatigue crack growth in magnesium. Acta Mater2011; 59(17): 6761–6771.
154.
NogamiSGuanWToyotaM, et al. Fatigue life prediction of ferritic/martensitic steels based on universal slope equations and tensile properties obtained using small specimen. Fusion Eng Des2017; 125: 330–336.
155.
NogamiSItohTSakasegawaH, et al. Study on fatigue life evaluation using small specimens for testing neutron-irradiated materials. J Nucl Sci Technol2011; 48(1): 60–64.
156.
NogamiSNishimuraAWakaiE, et al. Development of fatigue life evaluation method using small specimen. J Nucl Mater2013; 441(1–3): 125–132.
157.
NogamiSSatoYTanakaA, et al. Effect of specimen shape on the low cycle fatigue life of reduced activation ferritic/martensitic steel. J Nucl Sci Technol2010; 47(1): 47–52.
158.
BallesterosAStrizhaloVAGrinikEU, et al. Determination of reference temperature T0 for steel JRQ in an unirradiated state and construction of a master curve. Strength Mater2002; 34(1): 27–34.
159.
KasadaROnoHKimuraA. Small specimen test technique for evaluating fracture toughness of blanket structural materials. Fusion Eng Des2006; 81(8–14 PART B): 981–986.
160.
LinYYangWTongZ, et al. Fracture toughness analysis of the china RPV steel with miniaturized specimen. Mater Sci Forum2016; 850: 41–46.
161.
ShinC-SLinS-W. Evaluating fatigue crack propagation properties using miniature specimens. Int J Fatigue2012; 43: 105–110.
162.
SokolovMALuconE. Influence of specimen size/type on the fracture toughness of five irradiated RPV materials. In: 17th International conference on environmental degradation of materials in nuclear power systems – water reactors, Ottawa, Canada, 9–13 August 2015.
163.
WallinK. Validity of small specimen fracture toughness estimates neglecting constraint corrections, vol. 1244. Philadelphia, PA: ASTM, 1995, pp.519–537.
164.
ZhouZTongZQianG, et al. Specimen size effect on the ductile-brittle transition reference temperature of A508-3 steel. Theor Appl Fract Mech2019; 104: 102370.
165.
HanWYabuuchiKKasadaR, et al. Application of small specimen test technique to evaluate fracture toughness of reduced activation ferritic/martensitic steel. Fusion Eng Des2017; 125: 326–329.
166.
YamamotoMOnizawaKYoshimotoK, et al. International round robin test on master curve reference temperature evaluation utilizing miniature C(T) specimen. Pennsylvania, USA: ASTM Special Technical Publication, 2015, pp.53–69.
167.
LuconEScibettaM. Miniature compact tension specimens for upper shelf fracture toughness measurements on rpv steels. J ASTM Int2008; 5: 100959.
168.
KimYSMatvienkoYGJeongHC. Development of experimental procedure based on the load separation method to measure the fracture toughness of Zr-2.5Nb tubes. Key Eng Mater2007; 345–346: 449–452.
169.
XinpingZYaowuSNingshuangH. The studies on fracture toughness of nuclear pressure vessel steels by using a small round compact tension specimen and a comparison with a Charpy-size specimen. Int J Pres Ves Pip1996; 69(2): 169–174.
170.
KatoTOhataMNogamiS, et al. Evaluation of impacts of stress triaxiality on plastic deformability of RAFM steel using various types of tensile specimen. Fusion Eng Des2016; 109(B): 1631–1636.
171.
NogamiSHisakaCFujiwaraM, et al. High temperature fatigue life evaluation using small specimen. Plasma Fusion Res2017; 12: 1405022.
172.
DePSObermarkCMMishraRS. Development of a reversible bending fatigue test bed to evaluate bulk properties using sub-size specimens. J Test Eval2008; 36(4): 402–405.
173.
DePSMishraRSSmithCB. Effect of microstructure on fatigue life and fracture morphology in an aluminum alloy. Scripta Mater2009; 60(7): 500–503.
174.
HaidyrahASNewkirkJWCastañoCH. Weibull statistical analysis of Krouse type bending fatigue of nuclear materials. J Nucl Mater2016; 470: 244–250.
175.
SugimotoTItohTSakaneM, et al. Development of fatigue testing machine for small sized specimen in liquid environment. Key Eng Mater2017; 734: 185–193.
176.
DžuganJProchazkaRKonopikP. Micro-tensile test technique development and application to mechanical property determination. In: SokolovMLuconE (eds) Small specimen test techniques: 6th volume. West Conshohocken, PA: ASTM International, 2015.
177.
HayakawaMWakitaMNakayamaE. Damage evaluation of ferrite and ferrite/pearlite steel during fatigue crack initiation by EBSD. In: 11th International fatigue congress, pts 1 and 2, volume 891-892 of advanced materials research (eds ClarkGWangCH), Melbourne, Australia, 2–7 March 2014, pp.410–415.
178.
NozawaTOgiwaraHKannariJ, et al. Torsion test technique for interfacial shear evaluation of F82H RAFM HIP-joints. Fusion Eng Des2011; 86(9–11): 2512–2516.
179.
NozawaTNohSTanigawaH. Determining the shear fracture properties of HIP joints of reduced-activation ferritic/martensitic steel by a torsion test. J Nucl Mater2012; 427(1–3): 282–289.
180.
BaoCCaiLXDanC. Estimation of fatigue crack growth behavior for small-sized C-shaped inside edge-notched tension (CIET) specimen using compliance technique. Int J Fatigue2015; 81: 202–212.
181.
KnitelSSpätigPSeifertHP. An inverse method based on finite element model to derive the plastic flow properties from non-standard tensile specimens of Eurofer97 steel. Nucl Mater Energy2016; 9(Suppl. C): 311–316.
182.
KomazakiS-IJojimaRMuraokaN, et al. Development of small bulge fatigue testing technique using small disk-type specimen. Fatigue Fract Eng Mater2019; 43(3): 444–456.
183.
WangHXuTShouB. Determination of material strengths by hydraulic bulge test. Materials2017; 10(1): 23.
184.
JitsukawaSKizakiMUminoA, et al. Methods and devices for small specimen testing at the Japan atomic energy research institute. In:Anon (ed.) ASTM Spec Tech Publ, vol. 1204. Pennsylvania, USA: ASTM International, 1993, pp.289–307.
185.
ParvezMMChenYLiouF. Comparison of fatigue performance between additively manufactured and wrought 304L stainless steel using a novel fatigue test setup. In: Proceedings of the solid freeform fabrication, Austin, TX, 12–14 August 2019.
186.
GussevM. Role of scale factor during tensile testing of small specimens. In: ASTM spec tech publ, vol. 6. Pennsylvania, USA: ASTM International, 2014, pp.1–19.
187.
VolákJBundaZ. Comparison of selected fatigue characteristics of P92 steel and 15CH2NMFA steel. In: METAL 2016 - 25th Anniversary international conference on metallurgy and materials, conference proceedings, Brno, Czech Republic, 25–27 May 2016, pp.885–890.
188.
KazakeviciuteJRouseJPDe FocatiisDSA, et al. The development of a novel technique for small ring specimen tensile testing. Theor Appl Fract Mech2019; 99: 131–139.
189.
ZhuHKumaiSTanakaT, et al. Tear toughness evaluation of a permanent mold cast a356 aluminum alloy using a small-size specimen. Mater Trans2004; 45(5): 1714–1721.
190.
ItoYSaitoMAbeK, et al. Effect of hydrogen on crack growth behavior in F82H steel using small-size specimen. In: SokolovMALuconE (eds) ASTM spec tech publ, vol. STP 1576, Pennsylvania, USA: ASTM International, 2015, pp.209–224.
191.
ChenGShanS-CChenX, et al. Ratcheting and fatigue properties of the high-nitrogen steel X13CrMnMoN18-14-3 under cyclic loading. Comput Mater Sci2009; 46(3): 572–578.
192.
European Committee for Standardization. Small punch test method for metallic materials. European Committee for Standardization, 2007. CEN Workshop Agreement,CWA 15627:2007 E.
193.
ASTM E3205-20. Standard test method for small punch testing of metallic materials. West Conshohocken, PA: ASTM International, 2020.
194.
British Standards Institution. BS EN 10371 Metallic materials. Small punch test method. London, UK: British Standards Institution, 2019.
195.
Standards Press of China (SPC). Small punch test methods of metallic materials for in-service pressure equipments –part 1: general requirements. Beijing: Standards Press of China (SPC), 2012.
196.
Standards Press of China (SPC). Small punch test methods of metallic materials for in-service pressure equipments –part 2: method of test for tensile properties at room temperature. Beijing: Standards Press of China (SPC), 2012.
197.
The Society of Materials Science. Standard for small punch creep test – estimation of residual life for high temperature component. Japan: The Society of Materials Science, 2012.
198.
ASTM International. ASTM E2248-18, standard test method for impact testing of miniaturized Charpy V-notch specimens. West Conshohocken, PA: ASTM International, 2018.
199.
ASTM International. ASTM E2546-15 standard practice for instrumented indentation testing. West Conshohocken, PA: ASTM International, 2015.
200.
International Organization for Standardization. BS EN ISO 14577-1:2015 metallic materials. instrumented indentation test for hardness and materials parameters. Test method. Geneva, Switzerland: International Organization for Standardization, 2015.
201.
ASTM International. ASTM E384-17 standard test method for microindentation hardness of materials. West Conshohocken, PA: ASTM International, 2017.
202.
KimBJKasadaRKimuraA. Effects of chemical composition on the impact properties of A533B steels. Mater Sci Forum2010; 654–656: 2895–2898.
203.
KimBJKasadaRKimuraA, et al. Evaluation of grain boundary embrittlement of phosphorus added F82H steel by SSTT. J Nucl Mater2012; 421(1–3): 153–159.
204.
KimY-CKimK-HKwonD. Nondestructive mechanical property assessment using instrumented indentation testing. In: Proceedings of the international offshore and polar engineering conference, Beijing, China, 20–25 June 2010, vol. 4, pp.312–315.
205.
KimSWTanigawaHHiroseT, et al. Effects of surface morphology and distributed inclusions on the low cycle fatigue behavior of miniaturized specimens of F82H steel. In: ASTM spec tech publ, vol. 1502 STP. Pennsylvania, USA: ASTM International, 2009, pp.159–169.
206.
KimBJKasadaRKimuraA, et al. Effects of specimen size on fracture toughness of phosphorous added F82H steels. Fusion Eng Des2011; 86(9–11): 2403–2408.
207.
KimBJKasadaRKimuraA, et al. Specimen size effects on fracture toughness of F82H steel for fusion blanket structural material. Green Energy Technol2011; 66: 286–291.
208.
NanstadRKSokolovMAChenX. Fracture toughness of 9Cr-1MoV and thermally aged alloy 617 for advanced reactor applications. In: TMS annual meeting, Orlando, FL, 11–15 March 2012, pp.343–356.
209.
KimM-COhYJLeeBS. Evaluation of ductile-brittle transition temperature before and after neutron irradiation for RPV steels using small punch tests. Nucl Eng Des2005; 235(17–19): 1799–1805.
210.
KapoorKSaibabaNKashyapBP, et al. Tearing crack growth and fracture micro-mechanisms under micro segregation in Zr-2.5Nb pressure tube material. J ASTM Int2008; 5(7), 1–10.
