Rolling bearing applications: Some trends in materials and heat treatments
Rolling bearing applications: Some trends in materials and heat treatments
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滚动轴承应用：材料和热处理的一些趋势
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Michel Perez
中科院分区：
文献类型：
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作者：
E. Tonicello;D. Girodin;C. Sidoroff;A. Fazekas;Michel Perez
滚动接触疲劳抗力和尺寸稳定性是对滚动轴承材料的两个重要要求。由于材料中存在弹性不均匀性（夹杂物），在表面下，由于缺乏或污染的润滑条件，可以开始滚动接触疲劳。在材料或热处理方面提出并批评了两种经典的解决方案。首先，研究表明，传统上用于降低接触应力的陶瓷球在污染环境下可能会产生更深的凹痕。其次，采用基于热电功率测量的综合方法来预测和理解贝氏体100Cr6钢的尺寸稳定性，尺寸变化与残余奥氏体含量成正比。
Rolling contact fatigue resistance and dimensional stability are the two important requirements for rolling bearing materials. Rolling contact fatigue can be initiated under the surface due to the presence of elastic inhomogeneities (inclusions) in the material, and, on the surface due to starved or contamination lubrication conditions. Two classical solutions in terms of material or heat treatment are presented and criticised. First, it is shown that ceramic balls, classically used to reduce contact stress, may induce deeper dents under contaminated environment. Second, an integrated approach based on thermoelectric power measurement is used to predict and understand the dimensional stability of bainitic 100Cr6 steel that exhibits dimension change proportional to its retained austenite content.