Vacuum Tribological Properties of a Ti-46Al-2Cr-2Nb Intermetallics
Vacuum Tribological Properties of a Ti-46Al-2Cr-2Nb Intermetallics
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DOI：
10.1115/1.4026079
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发表时间：
2014-04
影响因子：
2.5
通讯作者：
Jun Cheng;Jiqiang Ma;Yuan Yu;Yuan Yu;L. Fu;Zhuhui Qiao;Jun Yang;Jinshan Li;Wei-min Liu
中科院分区：
文献类型：
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作者：
Jun Cheng;Jiqiang Ma;Yuan Yu;Yuan Yu;L. Fu;Zhuhui Qiao;Jun Yang;Jinshan Li;Wei-min Liu
为了研究Ti-46 Al-2Cr-2Nb合金的真空摩擦学性能，在4.0 × 10−4Pa的高真空条件下，采用球盘旋转装置进行了该合金与AISI 52,100钢球在不同滑动速度和载荷下的干滑动摩擦学试验，并与空气中的试验进行了对比。在真空条件下，TiAl金属间化合物具有较好的耐磨性，而在空气中的耐磨性较差。Ti-46 Al-2Cr-2Nb合金在真空中的磨损率比在空气中的磨损率几乎低一个数量级。
In order to investigate the vacuum tribological properties of a Ti-46Al-2Cr-2Nb alloy, dry-sliding tribological tests of the alloy against AISI 52,100 steel ball under different sliding speeds and loads were performed at a high vacuum of 4.0 × 10−4Pa by ball-on-disk rotating configuration, and the same tests were done in air for comparative purposes. It is an important finding that the TiAl intermetallics have good wear resistance in vacuum, not like that in air. The wear rate of the Ti-46Al-2Cr-2Nb alloy in vacuum is almost lower by an order of magnitude than that in air.