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Friction and wear behavior of Mg-11Y-5Gd-2Zn-0.5Zr (wt%) alloy with oil lubricant

The sliding friction and wear behaviors of Mg-11Y-5Gd-2Zn-0.5Zr (wt%) alloy were investigated under oil lubricant condition by pin-on-disk configuration with a constant sliding distance of 1,000 m in the temperature range of 25-200℃. Results indicate that the volumetric wear rates and average fricti...

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Bibliographic Details
Published in:稀有金属:英文版 2013, Vol.32 (5), p.453-458
Main Author: Li-Jie Cao Qu-Dong Wang Yu-Juan Wu Bing Ye
Format: Article
Language:English
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Summary:The sliding friction and wear behaviors of Mg-11Y-5Gd-2Zn-0.5Zr (wt%) alloy were investigated under oil lubricant condition by pin-on-disk configuration with a constant sliding distance of 1,000 m in the temperature range of 25-200℃. Results indicate that the volumetric wear rates and average friction coefficients decrease with the increase of sliding speeds, and increase with the increase of test temperature below 150℃. The hard and thermally stable Mg12(Y,Gd)Zn phase with long-period stacking order structure in the alloy presents significant wear resistance, The wear mechanism below 100℃ is abrasive wear as a result of plastic extrusion deformation. The corporate effects of severe abrasive, oxidative, and delaminating wear result in the tribological mechanism above 100℃.
ISSN:1001-0521
1867-7185