吝欢,杨卯生,舒佰坡

• 1:昆明理工大学材料科学与工程学院
• 2:钢铁研究总院特殊钢研究所

摘要(Abstract)：

采用MoS_2、碳纳米管(CNTs)作为添加剂所制备的锂基润滑脂作为润滑条件,研究了8Cr4Mo4V高温轴承钢在润滑减摩条件下的微动磨损性能。结果表明:当滑动速度为0.028 m/s,接触应力增大时,主要磨损机制由轻微磨料磨损变为粘着磨损与磨料磨损;当初始接触应力为2.047 GPa,滑动速度从0.014 m/s增大到0.112 m/s时磨损机制主要为磨料磨损;当滑动速度为0.028 m/s时,磨损功耗小于46.82×10~9 J·m~(-2),主要以磨料磨损为主,磨损体积增速较缓,当磨损功耗大于46.82×10~9 J·m~(-2)时,此时开始产生粘着磨损,大于48.14×10~9 J·m~(-2)时粘着剥落严重,大面积剥落处犁沟深度增加,磨损体积增加迅速,磨损过程中8Cr4Mo4V中大量碳化物的存在对耐磨性具有有益作用。

关键词(KeyWords)： 8Cr4Mo4V轴承钢;粘着磨损;磨料磨损;磨损功耗

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吝欢,杨卯生,舒佰坡

DOI: 10.13289/j.issn.1009-6264.2019-0021

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