王强,杨涤心,魏世忠,龙锐,李炎

• 1:河南科技大学
• 2:河南科技大学
• 3:河南省耐磨材料工程技术研究中心
• 4:河南省耐磨材料工程技术研究中心

摘要(Abstract)：

研究了高钒高速钢(C3%,V10%)和高铬铸铁(Cr26)两种轧辊用材料的力学性能和滚动磨损性能。应用位错理论分析了高钒高速钢、高铬铸铁中碳化物裂纹的形核和滚动磨损的循环特性对材料滚动磨损性能的影响。结果表明,碳化钒内部的纳米亚结构在滚动磨损过程中能够降低裂纹形核率,高钒高速钢磨面及亚表层的循环软化能够延缓疲劳裂纹的扩展,基于以上因素,高钒高速钢滚动耐磨性是高铬铸铁的4.4倍。

关键词(KeyWords)： 滚动磨损性能;循环特性;再结晶组织;Orowan机制

Abstract:

Keywords:

基金项目(Foundation): 河南省重大科技攻关项目(0322020300)

作者(Author): 王强,杨涤心,魏世忠,龙锐,李炎

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