Microstructure and mechanical properties of aluminum alloy composites with endogenous nano-TiCp

被引：3
|
作者：
Song, Xiang-Yi [1 ,2 ]
Wang, Ya-Jie [1 ,2 ]
Zhang, Jing-Xin [1 ,2 ]
Du, Dong-Ao [1 ,2 ]
Yang, Hong-Yu [1 ,2 ]
Zhao, Liang [1 ,2 ]
Peng, Fan [3 ]
Li, Xin [1 ,2 ]
Qiu, Feng [1 ,2 ]
机构：
[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Renmin St 5988, Changchun 130025, Jilin, Peoples R China
[2] Jilin Univ, Dept Mat Sci & Engn, Renmin St 5988, Changchun 130025, Jilin, Peoples R China
[3] Kocel Intelligent Machinery Ltd Yinchuan, Yinchuan 750021, Ningxia, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Nano-TiCp; Microstructure; Mechanical properties; MATRIX COMPOSITES; HIGH-STRENGTH; PARTICLES; EVOLUTION; BEHAVIOR; FABRICATION; NANOPARTICLES; MORPHOLOGY; DUCTILITY; MODEL;
D O I：
10.1016/j.ceramint.2022.10.305
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：
The purpose of this work is to prepare nano-TiCp reinforced Al-13Si-5Cu-2Ni matrix composites by self -propagating high-temperature synthesis (SHS). To study the changes in microstructure and mechanical prop-erties, and summarize the strengthening mechanism. The results show that when nano-TiCp is added, it can significantly improve the nucleation rate of alpha-Al phase and refine alpha-Al dendrites. The alpha-Al dendrites were refined by 81.6%. The size of the precipitated phases Al2Cu was refined by 28.1% and more evenly distributed. The tensile strength, yield strength, and elongation of Al-13Si-5Cu-2Ni alloy with 1 wt% nano-TiCp are 408 MPa, 238 MPa, and 7.5%, respectively, which are increased by 5.7%, 6.5% and 29% compared with the alloys without nano-TiCp. This work provides a reference for nano-particles enhancing the properties of Al alloys to achieve microstructure refinement and performance improvement.
引用
收藏
页码：6923 / 6931
页数：9
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