高铬白口铸铁干滑动摩擦磨损特性的研究

基金项目:

河南省自然科学基金资助项目:994040500

详细信息

Study on the Characteristics of Dry Sliding Friction of High Chromium White Cast Iron

Material Science and Engineering Department of Luoyang Institute of Technology, Luoyang 471039, China

摘要: 研究了两种碳化物 ((Fe,Cr)₂₃C₆型碳化物和 (Fe,Cr)₇C₃ 型碳化物)和 3种基体组织 (共析组织、马氏体组织和奥氏体组织)的高铬白口铸铁与淬火40Cr钢对磨时的干滑动摩擦磨损特性。试验结果表明, 与(Fe,Cr)₂₃C₆型碳化物相比, (Fe,Cr)₇C₃型碳化物有利于提高高铬白口铸铁的耐磨性, 降低其摩擦系数; 在高接触应力情况下, 与马氏体和奥氏体基体的合金相比, 共析组织基体的合金具有更大的摩擦系数, 其耐磨性也更好。
- 高铬白口铸铁 /
- 干滑动 /
- 摩擦系数 /
- 耐磨性
Abstract: The characteristics of dry sliding friction of high chromium white cast iron with quenching 40Cr steel were studied. A series of high chromium white cast iron with two kinds of carbide and three kinds of matrix structure were tested. The results indicate that (Fe,Cr)₇C₃ is more helpful to rising wear resistance of high chromium white cast iron and lowering friction factor than (Fe,Cr)₂₃C₆. Under high contact stress condition, the alloy with eutectoid matrix gives higher friction factor and has better wear resistance than that with martensite and austenite matrix.
- High chromium white cast iron /
- Dry sliding /
- Friction factor /
- Wear resistance