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首页> 外文会议>Bulk metallic glasses >Tribological Characteristics of Zr sub 41.2TI sub 13.8CU sub 12.5NI sub 10.0Be sub 22.5 Bulk Metallic Glass
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Tribological Characteristics of Zr sub 41.2TI sub 13.8CU sub 12.5NI sub 10.0Be sub 22.5 Bulk Metallic Glass

机译：Zr sub 41.2TI sub 13.8CU sub 12.5NI sub 10.0Be sub 22.5大块金属玻璃的摩擦学特性

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摘要

The sliding characteristics of Zr sub 41.2Ti sub 13.8Cu sub 12.5NI sub 10.0Be sub 22.5 bulk metallic glass have been examined in vacuum and in air using a pin/disk geometry without lubrication. The counterfce material was either the smae metallic glass or 52100 steel. NOrmal load was 0.1-1 kgf. The test system was equipped for ocntinuous measurement of friction force .In addition, a kelvin probe allowed continuous monitoring of changes in the structure and chemistry of the disk surface. Post-test characterization included optical and electron microscopy, X-ray diffraction and EDs of worn surfaces and debris. Friction coefficients in both vacuum and air were typical of those expected for ductile materials, with values ranging from 0.4 to 0.9. Wear rates and average debris size increased with load. Wear rates were larger in air than in vacuum. Wear surface appearance and chemical compositions were high. Changes in the Kelvin probe signal correlated well with visual observations and with concentrations of oxygen detected by EDS.
机译：Zr sub 41.2Ti sub 13.8Cu sub 12.5NI sub 10.0Be sub 22.5大块金属玻璃的滑动特性已在真空和空气中使用不带润滑的销/盘几何结构进行了检查。防伪材料是smae金属玻璃或52100钢。标称载荷为0.1-1 kgf。该测试系统可连续测量摩擦力。此外，开尔文探针可连续监测磁盘表面的结构和化学变化。测试后的表征包括光学和电子显微镜，X射线衍射以及磨损表面和碎屑的ED。真空和空气中的摩擦系数是可延展材料的典型摩擦系数，范围为0.4至0.9。磨损率和平均碎屑尺寸随负载而增加。空气中的磨损率大于真空中的磨损率。磨损表面外观和化学成分很高。开尔文探针信号的变化与目视观察以及EDS检测到的氧气浓度密切相关。

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