3Cr3Mo2V铸钢和3Cr13钢磨损行为的研究  

Research on Wear Behavior of 3Cr3Mo2V Cast Steel and 3Cr13 Steel

作　　者：茅奕舒[1] 崔向红[1] 王树奇[1] 李冬生[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《钢铁钒钛》2012年第5期101-106,共6页Iron Steel Vanadium Titanium

基　　金：国家自然科学基金项目(51071078);江苏省高校摩擦学重点实验室开放项目(kjsmcx1004)

摘　　要：采用销盘式磨损试验机对3Cr3Mo2V铸钢和3Cr13钢在环境温度25℃和200℃下进行干滑动磨损试验,研究了显微组织和摩擦氧化物对3Cr3Mo2V铸钢和3Cr13钢磨损行为的影响,并探讨其磨损机制。结果表明:摩擦氧化物对25℃和200℃下的磨损行为和磨损机制有显著的影响,而摩擦氧化物的减磨作用取决于其数量和基体状态等,与钢的成分和显微组织密切相关。高的铬含量阻碍摩擦氧化物的形成,低硬度的回火索氏体加速氧化物剥落,故无摩擦氧化物的作用或作用降低。Dry sliding wear tests were performed for 3Cr3Mo2V cast steel and 3Cr13 steel at 25℃ and 200℃ on a pin-on-disk wear tester. The effect of microstructures and tribo-oxides on the wear behavior of 3Cr3Mo2V cast steel and 3Cr13 steel was probed into and the wear mechanism was also discussed. The results show that tribo-oxides exert a significant influence on wear behavior and mechanism, and the wear reducing effect of tribo-oxides depends on their amount and substrate state that is closely related with the compositions and microstructures of the steel. High Cr content impedes the formation of tribo-oxides and tempered sorbite with low hardness accelerates the stripping of tribo-oxides, thus, the wear reducing effect of tribo-oxides is destroyed or reduced.

关 键 词：3Cr3Mo2V 3Cr13 钢 磨损行为 干滑动磨损 摩擦氧化物 显微组织 

分 类 号：TG115.58[金属学及工艺—物理冶金]