Observation of Subsurface Crack of Carburized Steel (SCM415) under Single-Ball Rolling Contact Fatigue over 107 Cycles
Observation of Subsurface Crack of Carburized Steel (SCM415) under Single-Ball Rolling Contact Fatigue over 107 Cycles
复制标题
渗碳钢 (SCM415) 在单球滚动接触疲劳 107 个循环下的亚表面裂纹观察
DOI：
10.4028/www.scientific.net/ssp.298.19
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
K. Kida
中科院分区：
文献类型：
--
作者：
M. Fukuda;K. Mizobe;K. Kida
轴承失效是由于亚表面裂纹引起的剥落失效。亚表面裂纹是在材料内部扩展的，不易观察。为了观察整个亚表面裂纹，我们进行了滚动接触疲劳（RCF）试验的渗碳SCM 415，直到超过107个周期的单球RCF机。在RCF测试之后，我们直接观察了次表面裂纹。
Bearing fails due to the flaking failure which is caused by the subsurface cracks. The observation of the subsurface cracks is not easy beacause the cracks propagate inside the material. In order to observe the whole subsurface cracks, we performed rolling contact fatigue (RCF) tests of carburized SCM415 until over 107 cycles with the single-ball RCF machine. After the RCF tests, we directly observed the subsurface cracks.