Friction and wear behavior of annealed Ti-20Zr-6.5A1-4V alloy sliding against 440C steel in vacuum
Friction and wear behavior of annealed Ti-20Zr-6.5A1-4V alloy sliding against 440C steel in vacuum
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DOI：
10.1016/j.triboint.2017.01.040
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发表时间：
2017-05-01
影响因子：
6.2
通讯作者：
Liu, R. P.
中科院分区：
文献类型：
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作者：
Zhong, H.;Dai, L. Y.;Liu, R. P.
在真空条件下，研究了一种新型Ti-20 Zr-6.5Al-4V合金在不同退火温度（800 ℃、900 ℃和1000 ℃）下的摩擦学性能。获得了真空条件下Ti 20 Zr-6.5A1-4V合金的摩擦系数和磨损体积。扫描电子显微镜分析，以确定磨损机制。结果表明，在10 N载荷下，磨损机制由轻微的粘着磨损和严重的磨粒磨损转变为30 N载荷下的严重塑性变形和剥层磨损。在不锈钢球表面发现了一层转移层，EDS分析表明，该转移层来源于Ti-20 Zr-6.5Al-4V合金。还探索了Ti-20 Zr-6.5Al-4V磨损表面的三维形貌。
Tribological behavior of a recently-developed Ti-20Zr-6.5A1-4V alloy was tested in vacuum at different annealing temperatures (800 degrees C, 900 degrees C and 1000 degrees C). Coefficient of friction and wear volume of the Ti20Zr-6.5A1-4V alloy in vacuum were obtained. Scanning electron microscopy analysis was employed to determine the wear mechanism. Results show that the main wear mechanism changes from mild adhesive and severe abrasive wear at 10 N loading to severe plastic deformation and delamination wear at 30 N loading. A transfer layer was found on the stainless steel ball surface and the EDS results reveal that the layer originates from the Ti-20Zr-6.5A1-4V alloy. The three dimensional topography of the Ti-20Zr-6.5A1-4V worn surface was also explored.