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首页> 外文期刊>Tribology International >Physic-chemical analysis for high-temperature tribology of WC-6Co against Ti-6Al-4V by pin-on-disc method
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Physic-chemical analysis for high-temperature tribology of WC-6Co against Ti-6Al-4V by pin-on-disc method

机译：用尖盘法对Ti-6AL-4V进行高温摩擦学学的物理化学分析

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摘要

To study high-temperature tribological behaviors between tools and workpieces plays an active role in the development of high-speed machining. This original work dedicated to investigate high-temperature tribological behaviors of Ti-6Al-4V/WC-6Co interaction couples at the temperature ranging 20 degrees C, 320 degrees C, 620 degrees C, and 920 degrees C, which analyzed the physic-chemical properties of coefficient of friction, tribological topography, element diffusion, phase compositions, and nano-indentation hardness. Smaller coefficient of friction was existed under the high-temperature due to softer Ti-6Al-4V serving as lubricating layers at the interface. The tribological behaviors were gradually changed by the temperature conditions, which converted mechanical into the coupled mechanical-chemical induced wear. The effects of high-temperature conditions on WC-6Co could result in a certain degree of nano-indentation hardness weakening. This work provides an in-depth understanding of tribological behaviors and failure mechanism of tool materials in machining Ti-6Al-4V.
机译：为了研究工具和工件之间的高温摩擦学行为在高速加工的发展中起着积极作用。这种原创作品专用于调查Ti-6AL-4V / WC-6CO相互作用耦合的高温摩擦学行为，在温度范围内，320℃，620℃和920℃，分析物理化学品摩擦系数，摩擦学推形，元素扩散，相组合物和纳米缩进硬度的性质。由于在界面处用作润滑层，在高温下存在较小的摩擦系数。摩擦力逐渐改变温度条件，将机械转化为耦合机械化学诱导的磨损。高温条件对WC-6CO的影响可能导致一定程度的纳米压痕硬度削弱。这项工作深入了解加工Ti-6AL-4V的工具材料的摩擦学行为和故障机制。

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