Friction and wear behavior of Mg-11Y-5Gd-2Zn-0.5Zr (wt%) alloy with oil lubricant |
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作者姓名: | Li-Jie Cao Qu-Dong Wang Yu-Juan Wu Bing Ye |
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作者单位: | [1]College of Mechanical Engineering, Shanghai University ofEngineering Science, Shanghai 201600, China [2]National Engineering Research Center of Light Alloy NetForming, Shanghai Jiao Tong University, Shanghai 200240,China |
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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℃. 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℃.
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关 键 词: | 摩擦磨损行为 镁合金 重量 润滑油 靶板 锌 滑动距离 磨料磨损 |
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