Effect of hot deformation treatment on the microstructure and mechanical properties of selective laser melted AlSi10Mg alloy

被引：0

作者：

Tang, Huaping ^{[1
]}

Li, Na ^{[1
]}

Lei, Chuan ^{[2
]}

Gao, Chaofeng ^{[1
]}

Bi, Yunjie ^{[1
]}

Rao, Jeremy Heng ^{[1
,3
]}

机构：

[1] Ji Hua Lab, Foshan 528255, Guangdong, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[3] Cent South Univ, Natl Key Lab Sci & Technol High Strength Struct Ma, Changsha 410083, Peoples R China

来源：

MATERIALS LETTERS | 2025年 / 383卷

关键词：

AlSi10Mg; Hot deformation; Selective laser melting; Dynamic recrystallization;

D O I：

10.1016/j.matlet.2024.137962

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of hot deformation at 450 degrees C on the microstructure and mechanical properties of selective laser melted (SLMed) AlSi10Mg was evaluated. The results show that this alloy exhibited good hot deformation potential. At a deformation of 30 %, the alloy undergoes dynamic recrystallization (DRX) and the columnar grains gradually transform into equiaxed grains. As the the deformation increases from 30 % to 50 %, the average grain size decreases from 13.64 mu m to 9.43 mu m, and the eutectic Si near the grain boundary transforms into coarse Si particles. Despite the decrease in yield strength (YS) from 271.3 MPa to 141.4 MPa, the elongation increases from 8.6 % to 16.8 %, mainly due to the DRX and disappearance of eutectic Si structure.

引用

页数：5

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