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标 题: Comprehensive analysis of effects of dynamic load frequency and hydrogenation to instigate White Etching Areas (WEAs) formation under severe sliding condition of bearing steel
对轴承钢在严重滑动条件下,动态载荷频率和氢化作用引发白蚀区(WEAs)形成的影响进行全面分析
作 者: Sreeraj, K.
Ramkumar, P.
关键词: Bearing steel  [轴承钢]
Pin-on-disc tribometer  [ 压盘式摩擦试验机]
Premature fatigue  [ 过早疲劳]
White etching area  [ 白色蚀刻区域]
出版年: 2020
期刊名: Tribology International
摩擦学国际
年卷期: 2020, vol.144
摘 要: This study investigates the effect of loading frequency and hydrogenation to instigate the White Etching Areas (WEAs) formation under severe sliding condition of bearing steel. Experiments were carried out at 1.5 Hz and 4.5 Hz loading frequencies by varying the contact pressure from 1 to 2 GPa using dynamic load Pin-on-Disc (PoD) tribometer. Steel -on-steel tribo-pair was lubricated by two different lubricants, PAO and real-time hydrogenating oil, under boundary lubrication. Synergic interaction between hydrogen enhanced and mechanical stress induced drivers on WEAs formation was established. Subsequently, quantitative insights on the catalysing behaviour of the individual and concurrent actions of drivers were elucidated. Sequential evolution of butterfly around the non-metallic inclusion from the primitive stage was revealed in pure sliding through metallographic investigation.

本研究探讨了在轴承钢严重滑动条件下,加载频率和氢化处理对诱发白蚀区(WEAs)形成的影响。实验采用动态载荷针盘式(PoD)摩擦磨损仪,在1.5 Hz和4.5 Hz的加载频率下,通过改变接触压力从1至2 GPa进行。钢-钢三体摩擦副在边界润滑条件下,分别使用PAO润滑剂和实时氢化油进行润滑。研究发现,氢化增强效应与机械应力诱导因素之间存在协同作用,共同促进白蚀区的形成。随后,通过金相分析揭示了在纯滑动过程中,非金属夹杂物周围蝴蝶状结构从原始阶段逐步演化的定量特征,阐明了各驱动因素单独及同时作用下的催化行为。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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