Friction and wear behavior of Mg–11Y–5Gd–2Zn–0.5Zr(wt%) alloy with oil lubricant
来源期刊：Rare Metals2013年第5期
论文作者：Li-Jie Cao Qu-Dong Wang Yu-Juan Wu Bing Ye
文章页码：453 - 458
摘 要：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°C.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°C.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°C 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°C.
Li-Jie Cao1，Qu-Dong Wang2，Yu-Juan Wu2，Bing Ye2
1. College of Mechanical Engineering, Shanghai University of Engineering Science2. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University
摘 要：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°C.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°C.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°C 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°C.
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