周升,伍婵娟,姜佩璐,韦习成

• 1:上海大学材料科学与工程学院
• 2:中国科学院上海技术物理研究所

摘要(Abstract)：

为了模拟成形过程中板带变形与摩擦的耦合作用,采用自制的耦合变形的摩擦试验装置研究了SUS304亚稳奥氏体不锈钢带分别与淬回火和渗硼处理的DC53冷作模具钢的往复摩擦行为,分析了钢带试样的塑性变形及相变行为并观察了其磨损表面形貌。结果表明,无论是淬回火亦或是渗硼处理的DC53与不锈钢试样配对摩擦,钢带试样的变形量与时间均呈对数关系;载荷增大,摩擦系数减小,而滑动速率对摩擦系数的影响很小,所有试验条件下摩擦系数均随试验进程表现出逐渐降低后趋于稳定的规律。与淬回火钢配对的不锈钢带的磨损机理以粘着磨损为主,与渗硼层明显改善了钢带的粘着磨损趋向,磨损机理以磨粒磨损为主。冷作模具采用渗硼处理可改善不锈钢冲压成形过程中的粘着磨损问题。

关键词(KeyWords)： 耦合变形摩擦;SUS304不锈钢;摩擦系数;渗硼处理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50675128)

作者(Author): 周升,伍婵娟,姜佩璐,韦习成

DOI: 10.13289/j.issn.1009-6264.2010.06.008

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