AlSi10Mg alloy formed by selective laser melting (SLM) has been gradually applied in aerospace and other fields, and heat treatment can further improve the properties of AlSi10Mg alloy. Therefore, it is very particularly meaningful to explore the effects of heat treatment on microstructure and residual stress of SLM AlSi10Mg alloy. An approach is proposed to evaluate the stress, strain and microstructure changes during heat treatment. As a result, the heating temperature of 350°C and tempering temperature of 200°C are the optimal heat-treatment processes. Furthermore, by tensile fracture analysis, the tensile strength of the sample after heat treatment decreases by 40%, and the total elongation after fracture increases by 280%.
AttaranM.The rise of 3-D printing: the advantages of additive manufacturing over traditional manufacturing. Bus Horiz. 2017; 60(5):677–688. doi:10.1016/j.bushor.2017.05.011.
2.
JoshiSCSheikhAA.3D printing in aerospace and its long-term sustainability. Virtual Phys Prototyp. 2015; 10(4):175–185. doi:10.1080/17452759.2015.1111519.
3.
AhnS-HYoonH-SJangK-HNanoscale 3D printing process using aerodynamically focused nanoparticle (AFN) printing, micro-machining, and focused ion beam (FIB). CIRP Ann. 2015; 64(1):523–526. doi:10.1016/j.cirp.2015.03.007.
4.
JamrózWSzafraniecJKurekM3D printing in pharmaceutical and medical applications – recent achievements and challenges. Pharm Res. 2018; 35(9):176–198. doi:10.1007/s11095-018-2454-x.
5.
ZhangLCKlemmDEckertJManufacture by selective laser melting and mechanical behavior of a biomedical Ti–24Nb–4Zr–8Sn alloy. Scr Mater. 2011; 65:21–24. doi:10.1016/j.scriptamat.2011.03.024.
6.
KempenKThijsLVan HumbeeckJMechanical properties of AlSi10Mg produced by selective laser melting. Phys Procedia. 2012; 39:439–446. doi:10.1016/j.phpro.2012.10.059.
7.
SuryawanshiJPrashanthKScudinoSSimultaneous enhancements of strength and toughness in an Al-12Si alloy synthesized using selective laser melting. Acta Mater. 2016; 115:285–294. doi:10.1016/j.actamat.2016.06.009.
8.
WangLJiangXGuoMCharacterisation of structural properties for AlSi10Mg alloys fabricated by selective laser melting. Mater Sci Technol. 2017; 33(18):2274–2282. doi: 10.1080/02670836.2017.1398513
9.
ZhangHZhuHQiTSelective laser melting of high strength Al–Cu–Mg alloys: processing, microstructure and mechanical properties. Mat Sci Eng A. 2016; 656:47–54. doi:10.1016/j.msea.2015.12.101.
10.
RosenthalISternAFrageN.Microstructure and mechanical properties of AlSi10Mg parts produced by the laser beam additive manufacturing (AM) technology. Metallogr Microstruct Anal. 2014; 3(6):448–453. doi:10.1007/s13632-014-0168-y.
11.
AttarHBönischMCalinMSelective laser melting of in situ titanium–titanium boride composites: processing, microstructure and mechanical properties. Acta Mater. 2014; 76:13–22. doi:10.1016/j.actamat.2014.05.022.
12.
SpieringsABDawsonKUggowitzerPJInfluence of SLM scan-speed on microstructure, precipitation of Al 3 Sc particles and mechanical properties in Sc-and Zr-modified Al-Mg alloys. Mater Des. 2018; 140:134–143. doi:10.1016/j.matdes.2017.11.053.
13.
KoutnyDSkulinaDPantělejevLProcessing of Al-Sc aluminum alloy using SLM technology. Procedia CIRP. 2018; 74:44–48. doi:10.1016/j.procir.2018.08.027.
14.
WangLJiangXZhuYInvestigation of performance and residual stress generation of AlSi10Mg processed by selective laser melting. Adv Mater Sci Eng. 2018; 2018:1–12. doi:10.1155/2018/7814039.
15.
KempenKThijsLVan HumbeeckJProcessing AlSi10Mg by selective laser melting: parameter optimisation and material characterisation. Mater Sci Technol. 2015; 31(8):917–923. doi: 10.1179/1743284714Y.0000000702
16.
WangXChouK.Microstructure simulations of Inconel 718 during selective laser melting using a phase field model. Int J Adv Manuf Tech. 2019; 100(9-12):2147–2162. doi:10.1007/s00170-018-2814-z.
17.
WeiPWeiZChenZThe AlSi10Mg samples produced by selective laser melting: single track, densification, microstructure and mechanical behavior. Appl Surf Sci. 2017; 408:38–50. doi:10.1016/j.apsusc.2017.02.215.
18.
ZhangL-CAttarH.Selective laser melting of titanium alloys and titanium matrix composites for biomedical applications: a review. Adv Eng Mater. 2016; 18:463–475. doi:10.1002/adem.201500419.
19.
PrashanthKGScudinoSKlaussHJMicrostructure and mechanical properties of Al―12Si produced by selective laser melting: effect of heat treatment. Mater Sci Eng. A. 2014; 590(2):153–160. doi:10.1016/j.msea.2013.10.023.
20.
TrevisanFCalignanoFLorussoMOn the selective laser melting (SLM) of the AlSi10Mg alloy: process, microstructure, and mechanical properties. Materials (Basel). 2017; 10(1):76. doi:10.3390/ma10010076.
21.
FiocchiJTuissiABassaniPLow temperature annealing dedicated to AlSi10Mg selective laser melting products. J Alloys Compd. 2017; 695:3402–3409. doi:10.1016/j.jallcom.2016.12.019.
22.
WangLSunJZhuXEffects of T2 heat treatment on microstructure and properties of the selective laser melted aluminum alloy samples. Materials (Basel). 2018; 11(1):66. doi:10.3390/ma11010066.
23.
RosenthalIShneckRSternA.Heat treatment effect on the mechanical properties and fracture mechanism in AlSi10Mg fabricated by additive manufacturing selective laser melting process. Mater Sci Eng. A. 2018. doi: 10.1016/j.msea.2018.05.074
24.
Yan-zhongWLiang-weiHHong-puZHeat treatment process optimization for face gearsbased on deformation and residual stress control. J Chongqing Univ. 2015; 1:9–18.
25.
JiangXKongXZhangZModeling the effects of undeformed chip volume (UCV) on residual stresses during the milling of curved thin-walled parts. International Journal of Mechanical Sciences. 2020; 167. doi:10.1016/j.ijmecsci.2019.105162.
26.
XuZ-xSuX-lXuQ-yNumerical simulation on vacuum solution heat treatment and gas quenching process of a low rhenium-containing Ni-based single crystal turbine blade. China Foundry. 2016; 13(6):402–413. doi:10.1007/s41230-016-6044-4.
27.
ShashikanthCDavidsonM.Experimental and simulation studies on thixoforming of AA 2017 alloy. Mater High Temp. 2015; 32(6):541–550. doi:10.1179/1878641314Y.0000000043.
28.
ShashikanthCDavidsonM.Simulation studies on deformation behaviour of AA2017 alloy in semi-solid state using FEA. Mater High Temp. 2014; 31(3):274–281. doi:10.1179/1878641314Y.0000000024.
29.
WangLJiangXZhuYAn approach to predict the residual stress and distortion during the selective laser melting of AlSi10Mg parts. Int J Adv Manuf Technol. 2018; 97(9-12):3535–3546. doi:10.1007/s00170-018-2207-3.
30.
YiY-pFuXCuiJ-dPrediction of grain size for large-sized aluminium alloy 7050 forging during hot forming. J Cent South Univ. 2008; 15(1):1–5. doi:10.1007/s11771-008-0001-3.
