渗碳
淬透性
材料科学
方位(导航)
冶金
回火
马氏体
碳化物
猝灭(荧光)
微观结构
等温过程
使用寿命
复合材料
物理
热力学
荧光
地理
量子力学
地图学
合金
作者
Yanhui Wang,Zhinan Yang,Fucheng Zhang,Yuman Qin,Xubiao Wang,Bo Lv
标识
DOI:10.1016/j.msea.2020.139086
摘要
Nanobainite and dispersed carbides were gained on the surface layer of a modified carburizing 23Cr2Ni2Si1Mo bainitic bearing steel based on carburization, tempering at high temperature, and succedent low-temperature isothermal quenching. As compared with the conventional carburizing 20Cr2Ni4 martensitic bearing steel, the novel carburizing 23Cr2Ni2Si1Mo nanobainitic bearing steel showed a much higher wear-resisting performance and rolling contact fatigue performance. Moreover, the hardenability and the comprehensive mechanical property of the modified 23Cr2Ni2Si1Mo bearing steel are better than those of the 20Cr2Ni4 bearing steel. The excellent properties suggest that the novel carburizing 23Cr2Ni2Si1Mo nanostructured bainitic steel is very promising to manufacture heavy-duty bearing, especially for bearings that bear impact load and need high wear-resisting performance and high rolling contact fatigue performance during their service life.
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