Effect of Al2O3 nanoparticle reinforcement on the mechanical and high-temperature tribological behavior of Al-7075 alloy

被引：23

作者：

Bai, Yaping ^{[1
]}

Guo, Yongchun ^{[1
]}

Li, Jianping ^{[1
]}

Yang, Zhong ^{[1
]}

Tian, Jia ^{[1
]}

机构：

[1] Xian Technol Univ, Sch Mat & Chem Engn, 2 Xuefuzhonglu Ave,Weiyang Coll Pk, Xian 710021, Shaanxi Provinc, Peoples R China

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY | 2017年 / 231卷 / 07期

基金：

美国国家科学基金会;

关键词：

Al2O3; nanoparticle; 7075; alloys; mechanical behavior; high-temperature tribological behavior; wear mechanism; MATRIX COMPOSITES; WEAR PROPERTIES; FRICTION; PARTICLES; ALUMINUM;

D O I：

10.1177/1350650116683627

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, Al2O3/7075 composites were prepared by mechanical alloying with subsequent hot-pressing sintering, and the effect of Al2O3 nanoparticle on the mechanical and tribological behavior of 7075 was studied. The mechanical property results showed that the hardness and compressive strength of Al2O3/7075 composites first increased and then decreased with Al2O3 amount increasing, and 5wt.% Al2O3 addition made the material exhibit excellent comprehensive mechanical properties. The tribological properties also indicated that 5wt.% Al2O3 nanoparticle significantly improved the high-temperature wear resistance of 7075 alloys. Thus, all the mechanical and tribological results confirmed that the addition of Al2O3 nanoparticle was a better strengthening way for 7075 alloys at high temperatures.

引用

页码：900 / 909

页数：10

共 21 条

[1] Design and Optimization of Friction Stir Welding Tool [J].