Effect of Pb content on microstructure and mechanical properties of Al-Pb surface composites by friction stir processing

被引：0

作者：

Yang, Li ^{[1
]}

Xiong, Yifeng ^{[1
,2
]}

Liu, Po ^{[1
]}

Zhang, Yaocheng ^{[1
]}

Jiang, Wei ^{[1
,2
]}

Yang, Yao ^{[1
,2
]}

Qiao, Jian ^{[1
,2
]}

He, Xiaoyan ^{[1
]}

Sun, Mengyao ^{[1
]}

机构：

[1] Changshu Inst Technol, Sch Automot Engn, Suzhou 25500, Jiangsu, Peoples R China

[2] Soochow Univ, Sch Mech & Elect Engn, Suzhou 15000, Jiangsu, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 08期

基金：

中国国家自然科学基金;

关键词：

friction stir processing; aluminum matrix composite; lead; microstructure; mechanical properties; WEAR BEHAVIOR; ALLOYS; PARTICLES; SOLIDIFICATION; FABRICATION; SIMULATION;

D O I：

10.1088/2053-1591/ab29db

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the friction stir processing (FSP) was employed to modify 1060 Aluminum (Al) surface composites reinforced with lead (pb) particles of different mass fractions (0-30 wt%). The effect of the Pb content on the microstructure, mechanical properties and wear resistance of Al-Pb alloy layer was investigated. The results indicated that an excellent metallurgical bonding was formed between Pb-rich phase and Al matrix by FSP, and most lead particles were uniformly distributed in the low regions of Al-Pb alloy layer. The tensile strength of FSPed composites was inferior to that of pure Al, while the elongation of FSPed composites with Pb content of 0-18 wt% was obviously enhanced. The wear resistance of FSPed composite was increased firstly and then decreased with increasing Pb content. Amongst the FSPed Al-Pb composite, specimen with 18 wt% of Pb showed the optimal wear resistance with low coefficient of friction.

引用

页数：12

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