任向红,朱金华,李永胜,陈茹

• 1:西安交通大学金属强度国家重点实验室
• 2:西安高科技研究所
• 3:天水风动机械有限责任公司

摘要(Abstract)：

渗碳钢中合金元素对渗碳过程中材料表面吸碳能力有很大影响,含有较多非碳化物形成元素Si、Mn的22Si2MnCrNi2Mo渗碳层的碳含量最低,只有0.65%;含有较多碳化物形成元素的35CrMoV渗碳层碳含量最高,可达1.05%。三种渗碳钢冲击磨损试验结果表明:冲击磨损速率随着渗碳表层碳含量的增加先降低后增加,在碳含量0.82%时冲击磨损速率出现低谷。冲击磨损过程中残余奥氏体由于应变诱发马氏体相变需消耗外加能量可降低磨损速率,得出磨损速率与相变能之间呈指数关系。

关键词(KeyWords)： 渗碳;冲击磨损;残余奥氏体;马氏体

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50471036)

作者(Author): 任向红,朱金华,李永胜,陈茹

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