Effects of Molybdenum Addition on Rolling Contact Fatigue of Locomotive Wheels under Rolling-Sliding Condition
作者： Yanpeng Wang , Pengcheng Xiang , Haohao Ding , Wenjian Wang , Qiang Zou
DOI: 10.3390/MA13194282
关键词:
摘要: Rolling contact fatigue (RCF) damages often occur, sometimes even leading to shelling on locomotive wheel treads. In this work, the RCF damage behaviors of two materials with different molybdenum (Mo) contents were studied, and influence depth material was explored as well. The result indicates that increase in Mo content from 0.01 wt.% (wheel 1, i.e., a standard wheel) 0.04 2, an improved wheel), proeutectoid ferrite interlamellar spacing pearlite decreased, length cracks increased average live steel by 34.06%. With material, increased, 1 then decreased whereas 2 showed decrease trend for while life 2. processes can be divided into three patterns: propagating back surface, crack connection fragments surface materials.
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