Semi-solid Tensile Behavior and its Relationship with Hot Tearing Susceptibility of Mg-xCa Alloys

被引：0
作者：
Zhao, Hua [1 ,2 ]
Song, Jiangfeng [1 ,2 ]
Wang, Jing [1 ,2 ]
Liu, Qiang [1 ,2 ]
Chen, Gong [1 ,2 ]
Xiao, Jianfei [1 ,2 ]
Liao, Jin'ge [1 ,2 ]
Teng, Hang [3 ]
Jiang, Bin [1 ,2 ]
Pan, Fusheng [1 ,2 ]
机构：
[1] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400045, Peoples R China
[2] Chongqing Univ, Natl Key Lab Adv Casting Technol, Chongqing 400044, Peoples R China
[3] Nanjing Yunhai Special Met Co Ltd, Nanjing 211212, Peoples R China
来源：
INTERNATIONAL JOURNAL OF METALCASTING | 2024年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
magnesium alloy; Mg-Ca alloy; semi-solid tensile; linear contraction; hot tearing; MECHANICAL-PROPERTIES; MAGNESIUM ALLOY;
D O I：
10.1007/s40962-023-01097-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
To figure out the relationship between semi-solid deformation and hot tearing susceptibility of magnesium alloys, the solid and semi-solid tensile experiments of binary Mg-xCa (x = 0.2, 0.5, and 2 wt%) alloys were conducted by a Gleeble 3500 thermal simulator. The linear contraction of the alloys was measured by a newly developed apparatus based on a constrained rod casting (CRC) hot tearing apparatus. The results indicated that the ultimate tensile strength (UTS) and fracture elongation (FE) of the alloys decreased with the decrease in solid fraction (increase in the test temperature). It is revealed that Mg-0.5Ca alloy exhibited the highest hot tearing susceptibility due to its extremely low ductility even at a high solid fraction of 0.96 and the highest linear contraction among the three alloys.
引用
收藏
页码：1119 / 1134
页数：16
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