The effect of over-based calcium sulfonate detergent additives on white etching crack (WEC) formation in rolling contact fatigue tested 100Cr6 steel
The effect of over-based calcium sulfonate detergent additives on white etching crack (WEC) formation in rolling contact fatigue tested 100Cr6 steel
复制标题
高碱性磺酸钙清净剂添加剂对滚动接触疲劳试验 100Cr6 钢白蚀裂纹 (WEC) 形成的影响
DOI：
10.1016/j.triboint.2019.01.005
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发表时间：
2019
影响因子：
6.2
通讯作者：
R. Wood
中科院分区：
文献类型：
--
作者：
A. Richardson;M.;L. Wang;M. Ingram;Z. Rowland;G. Llanos;R. Wood
油中的高碱性磺酸钙 (OBCaSul) 添加剂被认为对驱动 WEC 形成具有潜在的关键作用，但这种“驱动”效应尚不清楚。使用使用含有不同 OBCaSul 浓度的油润滑的 FE8 和 PCS 微点蚀装置对 100Cr6 钢进行滚动接触疲劳测试，使用连续切片、热脱附分析 (TDA) 来测量氢扩散以及形成的摩擦膜的 SEM/EDX 来分析测试样品。结果表明，OBCaSul 浓度似乎会影响 WEC 的形成倾向，试验装置之间显示出形成的逆转关系。有证据表明，含有 OBCaSul 的油会形成厚的以 Ca 为主的摩擦膜，可能会促进 FE8 滚子中的氢扩散和 WEC 形成，而 FE8 滚道上较薄的 Zn 单键摩擦膜可能会降低氢扩散和 WEC 的形成。
Over-based calcium sulfonate (OBCaSul) additives in oils are considered potentially critical in driving WEC formations, this ‘driving’ effect being unclear. Rolling contact fatigue testing of 100Cr6 steel using FE8 and PCS Micro-Pitting-Rig lubricated with oils containing varying OBCaSul concentrations have been conducted, tested samples being analysed using serial sectioning, Thermal desorption analysis (TDA) to measure hydrogen diffusion, and SEM/EDX of the tribofilms formed. Results show that OBCaSul concentration appears to affect WEC formation propensity, a reversal relationship of formations being shown between test rigs. Evidence shows oils containing OBCaSul form thick Ca dominated tribofilms, potentially promoting hydrogen diffusion and WEC formations in the FE8 rollers, where thinner Znsingle bondS tribofilms on the FE8 raceways may demote hydrogen diffusion and WEC formations.