Mg-2Y-0.6Nd-0.6Zr alloy was implemented for compression test via split Hopkinson pressure bar under the conditions of low temperature and a high strain rate. The microstructure evolution and deformation mechanism of the processed material were characterized by optical microscopy (OM), electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) during the testing of low-temperature dynamic compression. As a result, Mg-2Y-0.6Nd-0.6Zr alloy exhibited a positive strain rate strengthening processed by low-temperature dynamic compression along the RD. In addition, the dynamic compressive strength and yield strength are significantly enhanced with the increasing strain rate, following the emerging of tension twins and a small amount of compression twins. The primary deformation mechanisms are the prismatic <a > slip system and {102} tension twins. The Mg-2Y-0.6Nd-0.6Zr was fractured in a brittle manner at low temperature.
LiQ. Mechanical properties and microscopic deformation mechanism of polycrystalline magnesium under high-strain-rate compressive loadings. Materials Science and Engineering: A2012; 540: 130–134.
2.
WuRYanYWangG, et al.Recent progress in magnesium–lithium alloys. Int Mater Rev2015; 60: 65–100.
3.
HirschJAl-SammanT. Superior light metals by texture engineering: optimized aluminum and magnesium alloys for automotive applications. Acta Mater2013; 61: 818–843.
4.
WangXJXuDKWuRZ, et al.What is going on in magnesium alloys?J Mater Sci Technol2018; 34: 245–247.
5.
ZhangMWangJZhuY, et al.Ex-situ EBSD analysis of hot deformation behavior and microstructural evolution of mg–1Al–6Y alloy via uniaxial compression. Materials Science and Engineering: A2020; 775: 138978.
6.
GuoPLiLXiaoG, et al.High-speed impact behavior of a casting AM80 magnesium alloy under various deformation temperatures. J Alloy Compd2019; 811: 151875.
7.
JeongJAlfreiderMKonetschnikR, et al.In-situ TEM observation of{10-12} twin-dominated deformation of Mg pillars: twinning mechanism, size effects and rate dependency. Acta Mater2018; 158: 407–421.
8.
UlaciaIDudamellNVGálvezF, et al.Mechanical behavior and microstructural evolution of a Mg AZ31 sheet at dynamic strain rates. Acta Mater2010; 58: 2988–2998.
9.
DudamellNVUlaciaIGálvezF, et al.Twinning and grain subdivision during dynamic deformation of a Mg AZ31 sheet alloy at room temperature. Acta Mater2011; 59: 6949–6962.
10.
YuJSongBXiaD, et al.Dynamic tensile properties and microstructural evolution of extruded EW75 magnesium alloy at high strain rates. Journal of Magnesium and Alloys2020; 8: 849–859.
11.
HanGParkHKimH, et al.Local and global deformation behaviour in rolled pure magnesium sheets at room temperature under different strain rates. Materials Science and Engineering: A2019; 762: 138110.
12.
LiBJoshiSAzevedoK, et al.Dynamic testing at high strain rates of an ultrafine-grained magnesium alloy processed by ECAP. Materials Science and Engineering: A2009; 517: 24–29.
13.
FengFHuangSMengZ, et al.Experimental study on tensile property of AZ31B magnesium alloy at different high strain rates and temperatures. Mater Design2014; 57: 10–20.
14.
MaoPLiuZWangC. Texture effect on high strain rates tension and compression deformation behavior of extruded AM30 alloy. Materials Science and Engineering: A2012; 539: 13–21.
15.
NazeerFHassan NaqviSZKalamA, et al.Texture dependencies on flow stress behavior of magnesium alloy under dynamic compressive loading. Vacuum2021; 191: 110323.
16.
GuoPLiLLiuX, et al.Compressive deformation behavior and microstructure evolution of AM80 magnesium alloy under quasi-static and dynamic loading. Int J Impact Eng2017; 109: 112–120.
17.
ShiHXiaZPengF, et al.Effect of deformation speed on microstructure evolution and mechanical property of Mg-Gd alloys. Materials Today Communications2020; 25: 101555.
YokoyamaT. Tensile and compressive properties of wrought magnesium alloys. J Phys IV.2003; 110: 69–74.
20.
GuoPTangQLiL, et al.The deformation mechanism and adiabatic shearing behavior of extruded Mg-8.0Al-0.1Mn alloy in different heat treated states under high-speed impact load. Journal of Materials Research and Technology2021; 11: 2195–2207.
21.
HuangQPanHTangA, et al.On the dynamic mechanical property and deformation mechanism of as-extruded Mg-Sn-Ca alloys under tension. Materials Science and Engineering: A2016; 664: 43–48.
22.
ProustGToméCNJainA, et al.Modeling the effect of twinning and detwinning during strain-path changes of magnesium alloy AZ31. Int J Plasticity2009; 25: 861–880.
23.
AsgariHOdeshiAGSzpunarJA, et al.Grain size dependence of dynamic mechanical behavior of AZ31B magnesium alloy sheet under compressive shock loading. Mater Charact2015; 106: 359–367.
24.
LiuXZhuBWXieC, et al.Twinning, dynamic recrystallization, and crack in AZ31 magnesium alloy during high strain rate plane strain compression across a wide temperature. Materials Science and Engineering: A2018; 733: 98–107.
25.
TangWLiuSLiuZ, et al.High strain rate compression deformation mechanism and constitutive equation of fine grained Mg–7Gd–5Y–1.2Nd–0.5Zr alloy at different temperatures. Materials Science and Engineering: A2020; 780: 139208.
26.
AghionEBronfinB. Magnesium alloys development towards the 21st century. Mater Sci Forum2000; 350–351: 19–30.
27.
ZengRZhangJHuangW, et al.Review of studies on corrosion of magnesium alloys. T Nonferr Metal Soc2006; 16: s763–s771.
28.
WangMLuLLiC, et al.Deformation and spallation of a magnesium alloy under high strain rate loading. Materials Science and Engineering: A2016; 661: 126–131.
29.
JiangLJonasJJLuoAA, et al.Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy. Materials Science and Engineering: A2007; 445–446: 302–309.
30.
WangZCaoGWangF, et al.Investigation of the microstructure and properties of extrusion-shear deformed ZC61 magnesium alloy under high strain rate deformation. Mater Charact2021; 172: 110839.
31.
ZhangFLiuZYangM, et al.Microscopic mechanism exploration and constitutive equation construction for compression characteristics of AZ31-TD magnesium alloy at high strain rate. Materials Science and Engineering: A2020; 771: 138571.
32.
HaoMChengWWangL, et al.Texture evolution in Mg-8Sn-1Zn-1Al alloy during hot compression via competition between twinning and dynamic precipitation. Materials Science and Engineering: A2019; 748: 418–427.
33.
ZhangKShaoZDanielCS, et al.A comparative study of plastic deformation mechanisms in room-temperature and cryogenically deformed magnesium alloy AZ31. Materials Science and Engineering: A2021; 807: 140821.
34.
ShenJZhangLHuL, et al.Towards strength-ductility synergy through a novel technique of multi-pass lowered-temperature drawing in AZ31 magnesium alloys. J Alloy Compd2021; 873: 159604.
35.
WangYNHuangJC. Texture analysis in hexagonal materials. Mater Chem Phys2003; 81: 11–26.
36.
BarnettMRA taylor model based description of the proof stress of magnesium AZ31 during hot working. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science2003; 34: 1799–1806.
