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首页> 外文期刊>Journal of Materials Engineering and Performance >Dry Sliding Behavior of a TiZr-Based Alloy under Air and Vacuum Conditions
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Dry Sliding Behavior of a TiZr-Based Alloy under Air and Vacuum Conditions

机译：空气和真空条件下TizR基合金的干式滑动行为

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In this study, dry sliding tribological properties of a TiZr-based alloy with the chemical composition Ti-20Zr-6.5Al-4V (wt.%) were tested in air and vacuum under different normal loads (10, 20, and 30N) at various sliding velocities. Results showed that the coefficient of friction in air was lower than that in vacuum, whereas the wear volume at sliding velocity presented an opposite trend. The surfaces and cross-sectional morphology of wear scar on the TiZrAlV alloy was analyzed through scanning electron microscopy to determine the wear mechanisms. The observations showed that abrasive wear and delamination wear were dominant in air. In vacuum, the main wear mechanism changed from slightly abrasive and adhesive wear to severe adhesive wear and delamination wear as the normal load increased. Wear mechanism maps were also constructed and compared. The comparison showed that severe wear (including delamination wear) was prevalent in air.
机译：在该研究中，在不同正常载荷（10,20和30n）下，在空气和真空中测试具有化学成分Ti-20zR-6.5Al-6.5A1-6.5A-4V（重量％）的TizR基合金的干滑动摩擦学性质。 各种滑动速度。 结果表明，空气中的摩擦系数低于真空的摩擦系数，而滑动速度下的磨损体积呈现相反的趋势。 通过扫描电子显微镜通过扫描电子显微镜分析磨损瘢痕上的表面和横截面形态，以确定磨损机构。 观察结果表明，磨料磨损和分层磨损在空气中占主导地位。 在真空中，随着正常负荷增加，主磨损机构从略微磨料和粘合剂磨损变为严重的粘合磨损和分层磨损。 还构建和比较磨损机制图。 比较表明，空气中严重磨损（包括分层磨损）普遍存在。

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