Nanowear Mechanisms of Mg Alloyed with Al and Y at Elevated Temperatures

被引：15

作者：

Gokhale, Aditya ^{[1
]}

Meena, Trapesh ^{[1
]}

Lee, Soo Yeol ^{[2
]}

Huang, E-Wen ^{[3
]}

Gosvami, Nitya N. ^{[1
]}

Sinha, Sujeet K. ^{[4
]}

Jain, Jayant ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Mat Sci & Engn, New Delhi 110016, India

[2] Chungnam Natl Univ, Dept Mat Sci & Engn, Daejeon 34134, South Korea

[3] Natl Chiao Tung Univ, Dept Mat Sci & Engn, 1001 Univ Rd, Hsinchu 30010, Taiwan

[4] Indian Inst Technol Delhi, Dept Mech Engn, New Delhi 110016, India

来源：

TRIBOLOGY LETTERS | 2020年 / 68卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Wear; Scratch; Elevated temperature; Adhesion; Mg alloy; MAGNESIUM ALLOY; SLIDING WEAR; EVOLUTION; FRICTION; ELEMENTS; MICROSTRUCTURE; TEXTURE; YTTRIUM; ENERGY;

D O I：

10.1007/s11249-020-01288-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We examine the role of important alloying elements (Al, Y), on friction and wear mechanisms of Mg as a function of temperature. Friction and wear tests of Mg-5%Al and Mg-5%Y alloys performed at room temperature, 100 degrees C and 150 degrees C reveal that addition of Al and Y significantly reduces the coefficient of friction. However, despite higher hardness of Mg-5%Y alloy, its wear rate was found to be higher than Mg-5%Al alloy at elevated temperatures. We show that this behaviour, observed for Mg-5%Y alloy at elevated temperature, can be attributed to its higher surface energy than Mg-5%Al and pure Mg, leading to enhanced adhesive wear, which is detrimental to tribological applications.

引用

页数：8

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