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

页码：6923 / 6931

页数：9

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