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

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– x Ca ( x = 0.2, 0.5, and 2 wt%) alloys were conducted by a Gleeble 3500 thermal simulator. The linear contraction of the alloys...

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Bibliographic Details
Published inInternational journal of metalcasting Vol. 18; no. 2; pp. 1119 - 1134
Main Authors Zhao, Hua, Song, Jiangfeng, Wang, Jing, Liu, Qiang, Chen, Gong, Xiao, Jianfei, Liao, Jin’ge, Teng, Hang, Jiang, Bin, Pan, Fusheng
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.04.2024
Subjects
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Metallic Materials
Structural Materials
Technical Paper
linear contraction
Mg–Ca alloy
magnesium alloy
semi-solid tensile
hot tearing
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Summary: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– x Ca ( 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.
ISSN:1939-5981
2163-3193
DOI:10.1007/s40962-023-01097-4