Microstructural and Mechanical Properties of Aluminum Matrix Composite Reinforced with Cu-Zn-Al Particles Fabricated by Friction Stir Processing

被引：0
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作者：
Li Yang
Kai Jian Lu
Zheng Liu
Yao Cheng Zhang
Yu Hang Xu
Feng Xu
Hui Ming Gao
机构：
[1] Guangdong University of Technology,School of Advanced Manufacturing
[2] Guilin University of Aerospace Technology,School of Mechanical Engineering
[3] Soochow University,School of Mechanical Engineering
[4] Changshu Institute of Technology,School of Automatic Engineering
[5] National Dies and Molds Quality Supervision Test Center,undefined
来源：
Transactions of the Indian Institute of Metals | 2022年 / 75卷
关键词：
Friction stir processing; Cu-Zn-Al particles; Aluminum matrix composite; Microstructure; Mechanical properties;
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摘要：
Cu-Zn-Al particles reinforced 6061Al composites were fabricated by friction stir processing (FSP). The microstructure and mechanical properties of the composites under the FSP and T6 heat treatment were investigated. Microstructure observation showed that Cu-Zn-Al particles were homogeneously distributed in the Al matrix. FSP resulted in grain refinement and the reduction of the number of β-Mg2Si, and T6 heat treatment promoted the precipitation of fine particles (β”-Mg2Si). The introduced Cu-Zn-Al particles in the FSPed composites still exhibited reversible phase transformation between martensite and austenite. The tensile strength of the FSPed composites was inferior to that of base metal, while the elongation of composites was obviously enhanced. The tensile strengths of composites after T6 heat treatment increased greatly. The results indicated that FSP is an effective way to produce Cu-Zn-Al particles/Al composites with good mechanical properties.
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页码：1471 / 1479
页数：8
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