EFFECT OF Cu ON THE MICROSTRUCTURE, HARDNESS AND TENSILE PROPERTY OF 15 wt.%Mg2Si/Al-La COMPOSITES

被引：3
作者：
Liu, Tongyu [1 ]
Zou, Xue [1 ]
Yang, Chao [1 ]
Liu, Weihua [1 ]
Pan, Ying [1 ]
Li, Yingmin [1 ]
机构：
[1] Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao West Rd, Shenyang 110870, Peoples R China
来源：
INTERNATIONAL JOURNAL OF METALCASTING | 2024年 / 18卷 / 02期
关键词：
15%Mg2Si/Al-La composite; Cu addition; microstructure; mechanical properties; MECHANICAL-PROPERTIES; AL-MG2SI COMPOSITES; HEAT-TREATMENT; MG2SI; LA; BEHAVIOR; EVOLUTION; ALLOYS;
D O I：
10.1007/s40962-023-01094-7
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of different Cu contents (0 similar to 5%) on the microstructure and mechanical properties of 15wt.%Mg2Si/Al-La composite was investigated in the present work. The results show that Cu addition had a refining effect on the primary Mg2Si particles. The smallest particle size was acquired when 2% Cu was added. The UTS exhibited a parabolic tendency, which increased from 173 MPa to 227 MP by 31.21% and then decreased with further increasing Cu content. The UTS enhancement could be attributed to the appropriate content of Cu (2%) addition, which led to the formation of Cu-rich phases. When the Cu content was further increased, the UTS of the composite decreased for the coarsening of the Mg2Si particles and the increasing fraction of hard brittle phases.
引用
收藏
页码：1496 / 1507
页数：12
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