Thermomechanically processed high-strength low alloy steels containing microalloying elements such as Nb, Ti and V are extensively used in the pipeline, shipping, construction and automobile industries. However, microalloying elements like Nb and Ti can be prone to interdendritic segregation, that is, microsegregation. Microsegregation can lead to inhomogeneous precipitate distributions and the formation of coarse particles, grain size variation and microstructural banding in the final product. Microalloy segregation can result in the formation of large eutectic phase particles, which can cause hot-cracking of cast slab as well as affecting the final product properties like toughness and formability. Although microsegregation of elements like Mn, Si, Ni, Cr etc. have been widely investigated in steels, studies on microalloy segregation are more limited. Particularly, it is important to understand the influence of industrial casting practices (such as thick-slab continuous casting, thin-slab casting, and strip casting) on microalloy segregation and precipitation to determine the level of microalloy additions needed to provide the beneficial grain size control and precipitate strengthening but avoid the formation of coarse particles. Therefore, a comprehensive review is presented here on the characterization and prediction of interdendritic segregation of microalloying elements and the consequent precipitate distribution for different casting practices. The microsegregation of Nb and Ti at very high cooling rates, that is, welding and additive manufacturing, is also covered briefly to provide an insight for solidification under these conditions.
HoweHM. The metallography of steel and cast iron. 1st Ed. New York: McGraw-Hill Book Company, 1916.
2.
FlemingsMC. Solidification Processing. 1st Ed. New York: McGraw-Hill, 1974.
3.
BattleTP. Mathematical modelling of solute segregation in solidifying materials. Int Mater Rev1992; 37: 249–270.
4.
GhoshA. Segregation in cast products. Sadhana2001; 26: 5–24.
5.
KraussG. Solidification, segregation, and banding in carbon and alloy steels. Metallurgical and Materials Transactions B2003; 34: 781–792.
6.
VerhoevenJD. A review of microsegregation induced banding phenomena in steels. J Mater Eng Perform2000; 9: 286–296.
7.
JabarSSiefertJAStrangwoodM, et al.The effect of micro-segregation on the quantification of microstructural parameters in grade 91 steel. Metallurgical and Materials Transactions A2021; 52: 426–437.
8.
SunJLuS. Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe–Cr–Ni–Mo chakrald metal. Scr Mater2020; 186: 174–179.
9.
LiuDXueZSongS. Effect of cooling rate on non-metallic inclusion formation and precipitation and micro-segregation of Mn and Al in Fe–23Mn–10Al–0.7 C steel. J Mater Res Technol2023; 24: 4967–4979.
10.
GladmanT. The Physical Metallurgy of Microalloyed Steels, Book 615. 1st Ed. London: The Institute of Materials, 1997.
11.
DeArdoAJ. Niobium in modern steels. Int Mater Rev2003; 48: 371–402.
BakerTN. Processes, microstructure and properties of vanadium microalloyed steels. Mater Sci Technol2009; 25: 1083–1107.
14.
OthmanR. Strip casting of advanced high strength steel. PhD Thesis, Deakin University, Australia, 2019.
15.
FerryM. Direct strip casting of metals and alloys. 1st Ed. Cambridge, England: Woodhead Publishing Limited and Many Publishing Limited, 2006.
16.
GeSIsacMGuthrieRIL. Progress in strip casting technologies for steel; technical developments. ISIJ Int2013; 53: 729–742.
17.
LiSFengHWangS, et al.Phase transformation behaviors of Medium carbon steels produced by twin roll casting and compact strip production processes. Materials (Basel)2023; 16: 1980.
18.
LouhenkilpiS. Continuous casting of steel. In: Treatise on process metallurgy. 2nd Ed. Vol. 3. Netherlands: Elsevier, 2024, pp.343–383.
19.
RER-H. Physical Metallurgy principles. 2nd Ed. New York: D Van Nostrand Company, 1973.
20.
WonYThomasBG. Simple model of microsegregation during solidification of steels. Metall Mater Trans A2001; 32: 1755–1767.
21.
ScheilE. Bemerkungen zur schichtkristallbildung. Zeitschrift für Metallkunde1942; 34: 70–72.
22.
BrodyHDFlemingsMC. Solute redistribution during dendritic solidification. Trans. TMS-AIME1966; 236: 615–624.
23.
OhnakaI. Mathematical analysis of solute redistribution during solidification with diffusion in solid phase. Transactions of the Iron and Steel Institute of Japan1986; 26: 1045–1051.
24.
ClyneTWKurzW. Solute redistribution during solidification with rapid solid state diffusion. Metallurgical and Materials Transactions A1981; 12: 965–971.
25.
VollerVRBeckermannC. A unified model of microsegregation and coarsening. Metallurgical and Materials Transactions A1999; 30: 2183–2189.
26.
ChoudharySKGhoshA. Mathematical model for prediction of composition of inclusions formed during solidification of liquid steel. ISIJ Int2009; 49: 1819–1827.
27.
KurzWFisherDJ. Fundamentals of Solidification. 4th Edition. Switzerland: Trans Tech, Publication, 1998.
28.
ScheilE. Anlaufzeit der austenitumwandlung. Archiv für das Eisenhüttenwesen1935; 8: 565–567.
29.
KirkwoodDH. Microsegregation. Materials Science and Engineering1984; 65: 101–109.
30.
LiangYJChengXWangHM. A new microsegregation model for rapid solidification multicomponent alloys and its application to single-crystal nickel-base superalloys of laser rapid directional solidification. Acta Mater2016; 118: 17–27.
31.
AzizMJ. Model for solute redistribution during rapid solidification. J Appl Phys1982; 53: 1158–1168.
32.
KurzWGiovanolaBTrivediR. Theory of microstructural development during rapid solidification. Acta Metall1986; 34: 823–830.
33.
GuiLLongMHuangY, et al.Effects of inclusion precipitation, partition coefficient, and phase transition on microsegregation for high-sulfur steel solidification. Metallurgical and Materials Transactions B2018; 49: 3280–3292.
34.
RoySPatraSNeogyS, et al.Prediction of inhomogeneous distribution of microalloy precipitates in continuous-cast high-strength, low-alloy steel slab. Metall Mater Trans A2012; 43: 1845–1860.
35.
ChakrabartiD. Development of bimodal grain structures and their effect on toughness in HSLA steel. PhD Thesis. University of Birmingham, 2007. https://etheses.bham.ac.uk/id/eprint/989/
36.
ChakrabartiDDavisCLStrangwoodM. Development of bimodal grain structures in Nb-containing high-strength low-alloy steels during slab reheating. Metall Mater Trans A2008; 39: 1963–1977.
37.
ZhangD. Characterisation and modelling of segregation in continuously cast steel slab. PhD Thesis, The University of Birmingham, UK, 2015. https://etheses.bham.ac.uk/id/eprint/6256/
38.
ZhangDStrangwoodM. Interdendritic microsegregation development of high-strength low-alloy steels during continuous casting process. Mater Sci Technol2019; 35: 1337–1346.
39.
LageMG. Evaluating segregation in HSLA steels using computational thermodynamics. J Mater Res Technol2015; 4: 353–358.
40.
EscobarDPCastroBBorbaCS, , et al.Correlation of the solidification path with as-cast microstructure and precipitation of Ti, Nb (C,N) on a high-temperature processed steel. Metall Mater Trans A2018; 49: 3358–3372.
41.
RocaboisPLehmannJGayeH, et al.Kinetics of precipitation of non-metallic inclusions during solidification of steel. J. of Crystal Growth1999; 198/199: 838–843.
42.
PerezMDumontMAcevedo-ReyesD. Implementation of classical nucleation and growth theories for precipitation. Acta Mater2008; 56: 2119–2132.
43.
RobsonJD. Modelling the evolution of particle size distribution during nucleation, growth and coarsening. Mat. Sci. Tech2004; 20: 441–448.
44.
KunzeJSpitzerKHOswaldS, et al.Segregation and precipitation during solidification of Titanium and nitrogen containing iron alloys. Int J Mater Res1997; 88: 182–190.
45.
OkaguchiSHashimotoT. Computer model for prediction of carbonitride precipitation during hot working in Nb-Ti bearing HSLA steels. ISIJ Int1992; 32: 283–290.
46.
DuttaBPalmiereEJSellarsCM. Modelling the kinetics of strain-induced precipitation in Nb microalloyed steels. Acta Mater2001; 49: 785–794.
47.
MaugisPGouneM. Kinetics of vanadium carbonitride precipitation in steel: a computer model. Acta Mater2005; 53: 3359–3367.
48.
MukherjeeMPrahlUBleckW. Modelling the strain-induced precipitation kinetics of vanadium carbonitride during hot working of precipitation-hardened Ferritic–Pearlitic steels. Acta Mater2014; 71: 234–254.
49.
KunzeJMickelCLeonhardtM, et al.Precipitation of titanium nitride in low-alloyed steel during solidification. Steel Res1997; 68: 403–408.
50.
KunzeJMickelCBackmannG, et al.Precipitation of titanium nitride in low-alloyed steel during cooling and deformation. Steel Res1997; 68: 441–449.
51.
KötheAKunzeJBackmannG, et al.Precipitation of TiN and (Ti, Nb)(C, N) during solidification, cooling and hot direct deformation. Materials Science Forum, Trans Tech Publications Ltd1998; 284: 493–500.
52.
SchneiderAStallybrassCKonradJ, et al.Formation of primary TiN precipitates during solidification of microalloyed steels–scheil versus DICTRA simulations. Int. J. of Materials Research. (Formerly Z. Metallkd.)2008; 99: 674–679.
53.
DescotesVBellotJPWitzkeS. Modeling the titanium nitride (TiN) germination and growth during the solidification of a maraging steel. In: Proceedings of the 2013 international symposium on liquid metal processing & casting. Switzerland: Springer International Publishing, 2016, pp.201–206.
54.
Costa e SilvaA. Using computational thermodynamics to understand the evolution of solidification segregation during steel processing. J Phase Equilib Diffus2020; 41: 522–531.
55.
CapurroCCicuttiC. Analysis of titanium nitrides precipitated during medium carbon steels solidification. J Mater Res Technol2018; 7: 342–349.
56.
LudlowVBainKGRiazS, et al.Precipitation of nitrides and carbides during solidification and cooling in continuous casting. Metallurgical Research & Technology2006; 103: 17–24.
57.
XingLGuoJLiX, et al.Control of TiN precipitation behavior in titanium-containing micro-alloyed steel. Materials Today Communications2020; 25: 101292.
58.
JiCChenTZhuM. Carbonitride precipitation kinetics model during continuous casting of ti microalloyed steel. Metallurgical and Materials Transactions A2024; 55: 3045–3065.
59.
NagataMTSpeerJGMatlockDK. Titanium nitride precipitation behavior in thin-slab cast high-strength low-alloy steels. Metallurgical and Materials Transactions A2002; 33: 3099–3110.
60.
StockJEnloeCMMalleyO, , et al.Cooling rate effects on the as-cast titanium nitride precipitation size distribution in a low-carbon steel. AIST Transaction2014; 11: 180–187.
61.
WangPLiCWangL, et al.Thermodynamic analysis of TiN precipitation in SWRH92A high carbon tire cord steel under the influence of solute micro-segregations during solidification. Metallurgical and Materials Transactions B2021; 52: 2056–2071.
62.
SlaterCKostryzhevAMarenychO,et al.Implications of accelerated solidification rates seen in belt casting on precipitation in Nb bearing steels. Steel Res Int2018; 89: 1700358.
63.
JavaheriVNyyssönenTGrandeB, et al.Computational design of a novel medium-carbon, low-alloy steel microalloyed with niobium. J Mater Eng Perform2018; 27: 2978–2992.
CemernekDSandraCHeimoG, et al.Machine learning in continuous casting of steel: a state-of-the-art survey. J Intell Manuf2022; 33: 1561–1579.
67.
JiangLHWangAGTianNY, et al.BP Neural network of continuous casting technological parameters and secondary dendrite arm spacing of spring steel. J Iron Steel Res Int2011; 18: 25–29.
68.
OhnoMDaichiKMatsuuraK. Prediction of microsegregation based on machine learning and its extension to a macrosegregation simulation. Tetsu-to-Hagané2017; 103: 720–729.
69.
AnHBaoYWangM, et al.Numerical and experimental investigation of solidification structure evolution and reduction of centre segregation in continuously cast GCr15 bloom. Ironmak Steelmak2020; 47: 1063–1077.
70.
GaoXYangSLiJ. Effects of micro-alloying elements and continuous casting parameters on reducing segregation in continuously cast slab. Mater Des2016; 110: 284–295.
71.
ChenZLorettoMHCochraneRC. Nature of large precipitates in titanium-containing HSLA steels. Mater Sci Technol1987; 3: 836–844.
72.
MintzBCrowtherDN. The influence of small additions of Ti on the hot ductility of steel. In: BakerTN and Book 662 (eds) Titanium technology in microalloyed steels (proc. Of conf. In Sheffield, 1994). London: The Institute of Materials, 1997, pp.98–114.
73.
CouchAJ. Grain growth and dissolution kinetics in high strength low alloy (HSLA) steels. Ph.D. Thesis. The University of Leeds, 2001.
74.
HaenschWKlinkenbergC. Low carbon niobium alloyed high strength steel for automotive hot strip. Ironmak Steelmak2005; 32: 342–346.
75.
PreßlingerHMayrMTraglE, et al.Assessment of the primary structure of slabs and the influence on hot- and cold-rolled strip structures. Steel Research Int2006; 77: 107–115.
76.
QuTPTianJChenKL, et al.Precipitation behaviour of TiN in Nb-Ti containing alloyed steel during the solidification process. Ironmak Steelmak2019; 46: 353–358.
77.
MintzBWilcoxJRCrowtherDN. Hot ductility of directly cast C-Mn-Nb-Al steel. Mater Sci Technol1986; 2: 589–594.
78.
ZhouCPriestnerR. The evolution of precipitates in Nb-Ti microalloyed steels during solidification and post-solidification cooling. ISIJ Int1996; 36: 1397–1405.
79.
Li PH, Ibraheem AK, Priestner R. Eutectic precipitation of (Ti, Nb,V)(C. N) in cast, microalloyed low-C austenite and effects of reheating. Mater Sci Forum1998; 284–286: 517–526.
80.
ParkJSAjmalMPriestnerR. Tensile properties of simulated thin slab cast and direct rolled low-carbon steel microalloyed with Nb, V and Ti. ISIJ Int2000; 40: 380–385.
81.
KasparR. Microstructural aspects and optimization of thin slab direct rolling of steels. Steel Res Int2003; 74: 318–326.
82.
Ruiz-AparicioA. Evolution of microstructure in Nb-bearing microalloyed steels produced by compact strip production process. PhD Thesis, Dept. of Materials Sci. and Engg., Univ. of Pittsburgh, USA, 2004. http://d-scholarship.pitt.edu/7913/
83.
LiYWilsonJACravenAJ, et al.The effects of vanadium, niobium, titanium and zirconium on the microstructure and mechanical properties of thin slab cast steels. ISIJ Int2004; 44: 1093–1102.
84.
WangRGarciaCIHuaM, et al.Microstructure and precipitation behavior of nb, ti complex microalloyed steel produced by compact strip processing. ISIJ Int2006; 46: 1345–1353.
85.
ShaQYSunZQ. Microstructure and precipitation in as cast low carbon nb–V–ti microalloyed medium thin slab. Ironmak Steelmak2010; 37: 320–325.
86.
KlinkenbergCKintscherBHoenK. More than 25 years of experience in thin slab casting and rolling current state of the art and future developments. Steel Res Int2017; 88: 1700272.
87.
SharmaMRichterSPrahlU, et al.Characterization of nb-microsegregation and eutectic carbide in as-cast nb-microalloyed al-free case hardening steel. Steel Res Int2017; 88: 1700092.
88.
LiYLiuNZhangL, et al.Precipitate behaviour of large-sized Nb (C, N) in micro-alloyed steel. Ironmak Steelmak2024; 51: 597–608.
89.
AbrahamSBodnarRLonnqvistJ, et al.The mechanism for coarse nb-rich particle formation in steel. Metallurgical and Materials Transactions A2021; 52: 3727–3749.
DorinTStanfordNTaylorA, et al.Effect of cooling rate on phase transformations in a high-strength low-alloy steel studied from the liquid phase. Metallurgical and Materials Transactions A2015; 46: 5561–5571.
92.
DorinTWoodKTaylorA, et al.Effect of coiling treatment on microstructural development and precipitate strengthening of a strip cast steel. Acta Mater2016; 115: 167–177.
93.
GeS. Numerical and physical modeling of the horizontal single belt casting (HSBC) process, PhD Thesis. Canada: McGill University, 2015.
94.
XieKYYaoLZhuC, et al.Effect of Nb microalloying and hot rolling on microstructure and properties of ultrathin cast strip steels produced by the castrip® process. Metallurgical and Materials Transactions A2011; 42: 2199–2206.
95.
FelferPJKillmoreCRWilliamsJG, et al.A quantitative atom probe study of the Nb excess at prior austenite grain boundaries in a Nb microalloyed strip-cast steel. Acta Mater2012; 60: 5049–5055.
96.
ShresthaSLXieKYZhuC, et al.Cluster strengthening of Nb-microalloyed ultra-thin cast strip steels produced by the CASTRIP® process. Mater Sci Eng A2013; 568: 88–95.
WangZCarpenterKChenZ, et al.The effect of cooling rate and coiling temperature on the niobium retention in ultra-thin cast strip steel. Mater Sci Eng A2017; 700: 234–240.
99.
MalekiATaherizadehAHosseiniN. Twin roll casting of steels: an overview. ISIJ Int2017; 57: 1–14.
100.
JiangLMarceauRKWGuanB, et al.The effect of molybdenum on clustering and precipitation behaviour of strip-cast steels containing niobium. Materialia2019; 8: 100462.
101.
XuSWangSLiS, et al.Achieving high strength and large elongation in a strip casting microalloyed steel by ageing treatment. Mater Sci Eng A2022; 860: 144217.
102.
HuangYXuSLiX, et al.Cluster mediated high strength and large ductility in a strip casting micro-alloyed steel. Acta Mater2024; 276: 120102.
103.
JiangLMarceauRKWDorinT, et al.The effect of molybdenum on precipitation behaviour in austenite of strip-cast steels containing niobium. Metals (Basel)2020; 10: 1330.
104.
WangWCaiDLyuP, et al.Microstructure evolution and mechanical property of Cu-Bearing high-strength steel produced by simulated strip casting. Metallurgical and Materials Transactions B2023; 54: 833–850.
105.
SenkDEnglBSiemonO, et al.Investigation of solidification and microsegregation of near-net-shape cast carbon steel. Steel Res1999; 70: 368–372.
106.
KapoorIDavisCLiZ. Effects of residual elements during the casting process of steel production: a critical review. Ironmak Steelmak2021; 48: 712–727.
107.
IoannidouCArechabaletaZNavarro-LópezA, et al.Interaction of precipitation with austenite-to-ferrite phase transformation in vanadium micro-alloyed steels. Acta Mater2019; 181: 10–24.
108.
YinFWangLXiaoZ, et al.Effect of titanium and rare earth microalloying on microsegregation, eutectic carbides of M2 high speed steel during ESR process. J Rare Earths2020; 38: 1030–1038.
109.
SunJLuS. Effect of inhomogeneity on the microstructural evolution and mechanical behaviour of a vanadium-containing Fe–Cr–Ni–Mo weld metal. Mater Sci Eng A2021; 806: 140758.
110.
DuGLiuFYangC, , et al.In situ TiC-reinforced steel matrix: heterogeneous nucleation and formation mechanism of divorced eutectic TiC. Steel Res Int2020; 91: 1900673.
111.
DuGLiuFLiJ. Evolution of microstructures and divorced eutectic TiC formed during solidification of the wear-resistant steel. Mater Lett2020; 265: 127406.
112.
ZhenmingXGaofeiLQingfengG, et al.Tic as heterogeneous nuclei of the (Fe, Mn) 3C and austenite intergrowth eutectic in austenite steel matrix wear resistant composite. Mater Res Bull2004; 39: 457–463.
113.
RoySChakrabartiDDeyGK. Austenite grain structures in Ti-and Nb-containing high-strength low-alloy steel during slab reheating. Metall Mater Trans A2013; 44: 717–728.
114.
ChakrabartiDDavisCLStrangwoodM. Effect of deformation and nb segregation on grain size bimodality in HSLA steel. Mater Sci Technol2009; 25: 939–946.
115.
DavisCLStrangwoodM. Segregation behaviour in Nb microalloyed steels. Mater Sci Technol2009; 25: 1126–1133.
116.
FossaertCReesGMaurickxT, et al.The effect of niobium on the hardenability of microalloyed austenite. Metall Mater Trans A1995; 26: 21–30.
117.
ShenYHansenSS. Effect of the Ti/N ratio on the hardenability and mechanical properties of a quenched-and-tempered C-Mn-B steel. Metall Mater Trans A1997; 28: 2027–2035.
118.
MaalekianMAzizi-AlizaminiHMilitzerM. Phase field modeling of microstructure banding in steels. Metallurgical and Materials Transactions A2016; 47: 608–622.
119.
ChoudharySKGangulySSenguptaA, et al.Solidification morphology and segregation in continuously cast steel slab. J Mater Process Technol2017; 243: 312–321.
120.
KoskenniskaSKaijalainenAPikkarainenT, et al.Effect of as-cast structure and macrosegregation on mechanical properties in direct-quenched low-alloy ultrahigh-strength steel. Metall Mater Trans B2021; 52: 95–106.
121.
SlaterCDavisC. Near net shape casting: is it possible to cast too thin?Metall Mater Trans B2020; 51: 2532–2541.
122.
WangWZhuMCaiZ, et al.Micro-segregation behavior of solute elements in the mushy zone of continuous casting wide-thick slab. Steel Res Int2012; 83: 1152–1162.
123.
BhattacharyaDMisraS. Development of microalloyed steels through thin slab casting and rolling (TSCR) route. Trans Indian Inst Met2017; 70: 1647–1659.
124.
LouhenkilpiS. Continuous casting of steel. In: Treatise on process metallurgy, Chapter 1.10. 3rd Ed. Elsevier, 2024, pp.343–383.
125.
WuSJDavisCL. Effect of duplex ferrite grain size distribution on local fracture stresses of Nb-microalloyed steels. Mater Sci Eng A2004; 387: 456–460.
126.
ChakrabartiDStrangwoodMDavisC. Effect of bimodal grain size distribution on scatter in toughness. Metall Mater Trans A2009; 40: 780–795.
127.
BalartMJDavisCLStrangwoodM. Observations of cleavage initiation at (Ti, V)(C, N) particles of heterogeneous composition in microalloyed steels. Scr Mater2004; 50: 371–375.
128.
GhoshARayAChakrabartiD,et al.Cleavage initiation in steel: competition between large grains and large particles. Mater Sci Eng A2013; 561: 126–135.
129.
LiXCaiZHuM, et al.Effect of NbC precipitation on toughness of X12CrMoWNbVN10-1-1 martensitic heat resistant steel for steam turbine blade. J. of Materials Research and Technology2021; 11: 2092–2105.
130.
SunLZhangSSongR, et al.Effect of V, Nb, and Ti microalloying on low–temperature impact fracture behavior of non–quenched and tempered forged steel. Mater Sci Eng A2023; 879: 145299.
131.
TuranSShafyHPalkowskiH. Microscopic investigation for experimental study on transverse cracking of Ti-Nb containing micro-alloyed steels. Materials (Basel)2024; 17: 900.
132.
MintzBCrowtherDN. Hot ductility of steels and its relationship to the problem of transverse cracking in continuous casting. Int Mater Rev2010; 55: 168–196.
133.
PengHLiuXDengC, et al.Evolution of microsegregation-induced precipitations and bending fracture mechanisms of 9% Ni steel weldments filled with nickel-based alloys. J Mater Res Technol2023; 26: 42–57.
134.
JiFXuRGaoY, et al.Effect of Ti and rare earth on microsegregation and large-sized precipitates of H13 steel. J. Iron Steel Res. Int2021; 28: 1591–1604.
135.
OoiSWRamjaunTIHulme-SmithC, et al.Designing steel to resist hydrogen embrittlement part 2–precipitate characterisation. Mater Sci Technol2018; 34: 1747–1758.
136.
DegarmoEPBlackJTKohserRA. Materials and processes in manufacturing. 9th Ed.USA: Wiley, 2003. ISBN 0-471-65653-4.
137.
KunduADavisCLStrangwoodM. Pinning of austenite grain boundaries by mixed AlN and Nb (C, N) precipitates. Solid State Phenomena2011; 172: 458–463.
138.
GongPLiuXGRijkenbergA,et al.The effect of molybdenum on interphase precipitation and microstructures in microalloyed steels containing titanium and vanadium. Acta Mater2018; 161: 374–387.
139.
BakerTN. Role of zirconium in microalloyed steels: a review. Mater Sci Technol2015; 31: 265–294.
140.
LiaoWMazánovaVHeczkoM, et al.Underlying mechanisms for the effect of Nb micro-alloying on the elemental distribution and precipitation behavior in the X70 weld metal. Materialia2024; 38: 102264.
141.
BeidokhtiBKoukabiAHDolatiA. Effect of titanium addition on the microstructure and inclusion formation in submerged arc welded HSLA pipeline steel. J Mater Process Technol2009; 209: 4027–4035.
142.
Ramirez–LedesmaALAcosta–VargasLAJuarez–IslasJA. Suppression of interdendritic segregation during welding of a 347 austenitic stainless steel pipe reactors. Eng Fail Anal2020; 114: 104589.
143.
LippoldJC. Welding metallurgy and weldability. New Jersey, USA: John Wiley & Sons, 2014, ISBN 978-1-118-23070-1.
144.
ChengHLuoXWuX. Recent research progress on additive manufacturing of high-strength low-alloy steels: focusing on the processing parameters, microstructures and properties. Materials Today Communications2023; 36: 106616.
145.
WangZChenMZhaoK, et al.Effect of different feedstocks on the microstructure and mechanical properties of HSLA steel repaired by underwater laser direct metal deposition. Mater Chem Phys2024; 314: 128935.
146.
FrazierWE. Metal additive manufacturing: a review. J. Mater. Eng. Perform2014; 23: 1917–1928.
147.
KongDDongCWeiS, et al.About metastable cellular structure in additively manufactured austenitic stainless steels. Additive Manufacturing2021; 38: 101804.
148.
WangYXiaoBLiangX, et al.Strengthened microstructure and mechanical properties of austenitic 316L stainless steels by grain refinement and solute segregation. J Mater Res Technol2025; 34: 552–565.
149.
WengangZZhouWNaiSML. Grain refinement of 316L stainless steel through in-situ alloying with Ti in additive manufacturing. Mater Sci Eng A2022; 840: 142912.
150.
HanSBSongHParkSH. Improvement of tensile properties through Nb addition and heat treatment in additively manufactured 316L stainless steel using directed energy deposition. J Mater Res Technol2024; 29: 4806–4821.
151.
KarlssonDChouCYPetterssonNH, et al.Additive manufacturing of the ferritic stainless steel SS441. Additive Manufacturing2020; 36: 101580.
152.
BajajPHariharanAKiniA, et al.Steels in additive manufacturing: a review of their microstructure and properties. Mater Sci Eng A2020; 772: 138633.
153.
MantriSASriswaroopDSharmaA, et al.Effect of micro-segregation of alloying elements on the precipitation behaviour in laser surface engineered Alloy 718. Acta Mater2021; 210: 116844.
154.
NiePOjoOALiZ. Numerical modeling of microstructure evolution during laser additive manufacturing of a nickel-based superalloy. Acta Mater2014; 77: 85–95.
155.
ZubackJSMoradifarPKhayatZ, et al.Impact of chemical composition on precipitate morphology in an additively manufactured nickel base superalloy. J Alloys Compd2019; 798: 446–457.
156.
XiaoWXuYXiaoH, et al.Investigation of the Nb element segregation for laser additive manufacturing of nickel-based superalloys. Int J Heat Mass Transfer2021; 180: 121800.
157.
YeganehMShahryariZKhanjarAT, et al.Inclusions and segregations in the selective Laser-melted alloys: a review. Coatings2023; 13: 1295.
158.
AmiriVHomamNM. Wire arc additive manufacturing of functionally graded carbon steel-stainless steel 316L-inconel 625: microstructural characterization and mechanical behavior. Journal of Advanced Joining Processes2024; 9: 100194.
159.
TongXBeckermannC. A diffusion boundary layer model of microsegregation. J Cryst Growth1998; 187: 289–302.
160.
EikenJ. A Phase-Field Model for Technical Alloy Solidification. Ph.D. thesis. Germany: RWTH Aachen, 2009.
161.
AgilanMSatyamshreshtaKSivakumarD, et al.High-Throughput experiment and numerical simulation to study solidification cracking in 2195 aluminum alloy welds. Metallurgical and Materials Transactions A2022; 53: 1906–1918.
162.
HariharanVSNithinBRajLR, et al.Modeling microsegregation during metal additive manufacturing: impact of dendrite tip kinetics and finite solute diffusion. Crystals (Basel)2023; 13: 842.
163.
PatelJ. Ultra-low niobium (ULNb) alloying design solution for commodity grade structural steels. Mater Today Proc2022; 67: 523–530.
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