Effects of alloy elements (Mg, Zn) on the microstructure and mechanical properties of (TiC+TiB2)/Al composites

被引：7
作者：
Li, Shuang-Shuang [1 ,2 ,5 ]
Zhang, He [1 ,2 ,5 ]
Chang, Fang [1 ,2 ,5 ]
Fei, Yu-Nan [3 ]
Kou, Shu-Qing [1 ,2 ,5 ]
Shao, Yong [4 ]
Xuan, Qian-Qian [2 ,5 ]
Li, Xin [2 ,5 ]
Qiu, Feng [1 ,2 ,5 ]
机构：
[1] Jilin Univ, State Key Lab Automot Simulat & Control, Changchun, Peoples R China
[2] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Renmin St 5988, Changchun 130025, Jilin, Peoples R China
[3] Jilin Univ, Sch Mech & Aerosp Engn, Renmin St 5988, Changchun 130025, Jilin, Peoples R China
[4] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
[5] Jilin Univ, Dept Mat Sci & Engn, Renmin St 5988, Changchun 130025, Jilin, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2022年 / 48卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Al matrix composites; Combustion synthesis and hot -pressing method; Ceramic particles; METAL-MATRIX COMPOSITES; HYBRID COMPOSITES; BEHAVIOR; PERFORMANCE; FABRICATION; STRENGTH; SICP/AL; TENSILE;
D O I：
10.1016/j.ceramint.2022.04.201
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, 50 vol% (TiC + TiB2)/Al composites with different alloy elements (Mg, Zn) were prepared by combustion synthesis and hot-pressing method. The effects of Mg and Zn on the microstructure and mechanical properties of the composites were investigated. TiC and TiB2 particles in the composite were refined by the addition of Mg to a certain extent because of the decrease in the temperature of the reaction system caused by the high vapor pressure of Mg. Besides, the compressive strength of the composite with Mg was significantly improved, in which the solid solution strengthening of Mg atom and the interface strengthening by reducing the mismatch between alpha-Al and TiC/TiB2 contributed to this improvement. Compared with Mg, the refining effect of Zn on ceramic particles was not obvious and only the yield strength was increased by the solid solution strengthening.
引用
收藏
页码：22096 / 22105
页数：10
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