ISSN: 1003-6326
CN: 43-1239/TG
CODEN: TNMCEW

Vol. 13    No. 1    February 2003

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Effects of rare earths on friction and wear 
characteristics of magnesium alloy AZ91D
QI Qing-ju(祁庆琚), LIU Yong-bing(刘勇兵),
YANG Xiao-hong(杨晓红)
(College of Materials Science and Engineering, Jilin University, 
Changchun 130025, China
)
Abstract: The influence of various rare-earth contents on the friction and wear characteristics of magnesium alloy AZ91D was studied. The results show that the wear resistance properties of rare-earth magnesium alloys are better than those of the matrix alloy under the testing conditions. Magnesium alloys undergo transition from mild wear to severe wear. The addition of rare earths refines the structure of alloys, improves the comprehensive behaviors of the magnesium alloys, increases the stability of oxidation films on worn surfaces, enhances the loading ability of rare-earth magnesium alloys, and delays the transition from mild wear to severe wear effectively.
Key words:  rare earth; magnesium alloy; friction and wear
Superintended by The China Association for Science and Technology (CAST)
Sponsored by The Nonferrous Metals Society of China (NFSOC)
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