To control the microstructure of the Mg–5Zn–3Sn–1Mn–0.5Ca–0.5Cu alloy, a dynamic recrystallisation (DRX) mechanism map is constructed to facilitate the selection of deformation conditions to activate certain softening mechanisms. The DRX mechanism of the alloy is determined under different Zener–Hollomon values, where continuous DRX is the restoration mechanism when lnZ is lower than 30.4 and twin DRX and particle stimulated nucleation dominate when lnZ is higher than 34.6. The DRX map is constructed by assigning softening mechanisms to different regions of the deformation temperature-strain rate map. Representative deformation conditions are selected according to the DRX map for extrusion, and the results testify to the validity of the map. The mechanical properties of the alloy with different textures are analysed.
GaoJSunXZhouY, et al.Enhanced elevated temperature mechanical properties of AE84 heat-resistant cast magnesium alloy. Vacuum2023; 207: 111662.
2.
RazzaghiMMirzadehHEmamyM. Unraveling the effects of Zn addition and hot extrusion process on the microstructure and mechanical properties of as-cast Mg–2Al magnesium alloy. Vacuum2019; 167: 214–222.
3.
ChenWHeWJiangB, et al.Study on the compressive deformation behavior of a basal textured AZ31 magnesium alloy from the perspective of local strain. Mater Sci Eng A2022; 842: 143080.
4.
NakataTXuCSugiyaK, et al.Microtexture-induced anomalous anisotropic tensile behavior in Mg–Al–Zn alloy sheet. Mater Sci Eng A2022; 840: 143002.
5.
HantzscheKBohlenJWendtJ, et al.Effect of rare earth additions on microstructure and texture development of magnesium alloy sheets. Scr Mater2010; 63: 725–730.
6.
GuanDRainforthWMGaoJ, et al.Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 2 – shear bands. Acta Mater2018; 145: 399–412.
7.
ZhengTHuYZhangC, et al.Uncovering of the formation of rare earth texture and pseudo fiber bimodal microstructure in the high ductility Mg–2Gd–0.4Zr alloy during extrusion. J Mater Sci Technol2024; 172: 166–184.
8.
WangDJingYLinB, et al.On the structure, mechanical behavior, and deformation mechanism of AZ91 magnesium alloy processed by symmetric and asymmetric rolling. Mater Character2022; 194: 112444.
9.
JiangYZhangZWangM, et al.Microstructure and mechanical properties of Mg–Al–Sn–Ca alloy extruded by asymmetric severe shear extrusion with different asymmetric coefficients. J Alloys Compd2023; 960: 170884.
10.
WangHChenWZhangW, et al.Microstructure and texture evolution during compression-extrusion process for tension/compression symmetrical ZK61 magnesium alloy rod. Mater Sci Eng A2021; 806: 140807.
11.
WuJJinLDongJ, et al.The texture and its optimization in magnesium alloy. J Mater Sci Technol2020; 42: 175–189.
12.
QinDHWangMJSunCY, et al.Interaction between texture evolution and dynamic recrystallization of extruded AZ80 magnesium alloy during hot deformation. Mater Sci Eng A2020; 788: 139537.
13.
KongFChenHCuiX, et al.Texture weakening and ductility improvement of Mg–1.1Mn–0.5Al alloy via medium temperature-high reduction rolling: Twinning variants selection and dynamic recrystallization mechanism. J Mater Res Technol2023; 25: 3243–3257.
14.
WangCLuoTLiuY, et al.Microstructure and mechanical properties of Mg–5Zn–3.5Sn–1Mn–0.5Ca–0.5Cu alloy. Mater Charact2019; 147: 406–413.
15.
WangYPengJZhongL. On the microstructure and mechanical property of as-extruded Mg–Sn–Zn alloy with Cu addition. J Alloys Compd2018; 744: 234–242.
16.
ChangLLTangHGuoJ. Strengthening effect of nano and micro-sized precipitates in the hot-extruded Mg–5Sn–3Zn alloys with Ca addition. J Alloys Compd2017; 703: 552–559.
17.
PanHQinGXuM, et al.Enhancing mechanical properties of Mg–Sn alloys by combining addition of Ca and Zn. Mater Des2015; 83: 736–744.
18.
HortNHuangYAbu LeilT, et al.Properties and processing of magnesium–tin–calcium alloys. Kovove Mater2011; 49: 163–177.
19.
PrasadYVRKRaoKHortN,et al.Effect of thermal and mechanical treatments on the hot working response of Mg3Sn1Ca alloy. Int J Mater Res2010; 101: 300–306.
20.
LiLWangYLiH, et al.Effect of the Zener-Hollomon parameter on the dynamic recrystallization kinetics of Mg–Zn–Zr–Yb magnesium alloy. Comput Mater Sci2019; 166: 221–229.
21.
LiuG-LChengW-LLuoL, et al.Hot compression deformation behavior and dynamic recrystallization of a precipitate-free Mg–Bi–Sn alloy. J Mater Res Technol2023; 25: 497–510.
22.
WangCLiuYLinT, et al.Hot compression deformation behavior of Mg–5Zn–3.5Sn–1Mn–0.5Ca–0.5Cu alloy. Mater Charact2019; 157: 109896.
23.
ZhangKShaoZJiangJ. Effects of twin-twin interactions and deformation bands on the nucleation of recrystallization in AZ31 magnesium alloy. Mater Des2020; 194: 108936.
24.
HadadzadehAMokdadFWellsMA,et al.A new grain orientation spread approach to analyze the dynamic recrystallization behavior of a cast-homogenized Mg–Zn–Zr alloy using electron backscattered diffraction. Mater Sci Eng A2018; 709: 285–289.
25.
RobsonJDHenryDTDavisB. Particle effects on recrystallization in magnesium–manganese alloys: Particle-stimulated nucleation. Acta Mater2009; 57: 2739–2747.
26.
WangLFangGLeeflangS, et al.Investigation into the hot workability of the as-extruded WE43 magnesium alloy using processing map. J Mech Behav Biomed Mater2014; 32: 270–278.
27.
MosayebiMZarei-HanzakiAAbediHR, et al.Development of a novel RE-texture component in a Mg–Y–RE/SiCp magnesium composite through friction stir processing. Mater Lett2020; 260: 126899.
28.
PanHFuHRenY, et al.Effect of Cu/Zn on microstructure and mechanical properties of extruded Mg–Sn alloys. Mater Sci Technol2016; 32: 1240–1248.
29.
PengPSheJTangA, et al.A strategy to regulate the microstructure and properties of Mg–2.0Zn–1.5Mn magnesium alloy by tracing the existence of Mn element. J Alloys Compd2022; 890: 161789.
30.
NiuYSongZLeQ, et al.Excellent mechanical properties obtained by low temperature extrusion based on Mg–2Zn–1Al alloy. J Alloys Compd2019; 801: 415–427.
31.
HuangXChinoYYuasaM, et al.Microstructure and mechanical properties of AZX912 magnesium alloy extruded at different temperatures. Mater Sci Eng A2017; 679: 162–171.
32.
DuYZZhengMYXuC, et al.Microstructures and mechanical properties of as-cast and as-extruded Mg–4.50Zn–1.13Ca (wt%) alloys. Mater Sci Eng A2013; 576: 6–13.
33.
NazeerFHassan NaqviSZKalamA, et al.Texture dependencies on flow stress behavior of magnesium alloy under dynamic compressive loading. Vacuum2021; 191: 110323.
34.
WangBXinRHuangG,et al.Effect of crystal orientation on the mechanical properties and strain hardening behavior of magnesium alloy AZ31 during uniaxial compression. Mater Sci Eng A2012; 534: 588–593.
35.
SongBXinRGuoN, et al.Dependence of tensile and compressive deformation behavior on aging precipitation in rolled ZK60 alloys. Mater Sci Eng A2015; 639: 724–731.
36.
ZhuQShangXZhangH, et al.Influence of Al2Y particles on mechanical properties of Mg–11Y–1Al alloy with different grain sizes. Mater Sci Eng A2022; 831: 142166.
