夏鹏成,韩冠朋,谢鲲,杨磊,葛学元

• 1:山东科技大学材料科学与工程学院
• 2:机械科学研究总院先进制造技术中心
• 3:先进成形技术与装备国家重点实验室

摘要(Abstract)：

研究了热处理工艺对一种新型热作模具钢组织和性能的影响。结果表明:低于1100℃淬火,存在带状组织及偏析,硬度和磨损性能较低。1100℃淬火时,组织比较均匀,有较好的硬度和耐磨性。淬火温度升高到1150℃时,形成粗大的马氏体组织,硬度降低,磨损量增加。该热作模具钢经1100℃淬火后,在回火过程中,逐渐析出碳化物,析出的碳化物类型由渗碳体逐渐向合金碳化物转变,硬度和磨损抗力增加。当回火温度进一步升高时,合金碳化物尺寸逐渐增大,晶粒粗化,这些原因都导致该热作模具钢硬度下降,磨损量升高。该热作模具钢较佳的热处理工艺为:1100℃/油淬+2次560℃×2 h回火。

关键词(KeyWords)： 热作模具钢;热处理;组织;性能

Abstract:

Keywords:

基金项目(Foundation): 山东省泰山学者建设工程(ts20110828);; 国家自然基金项目(51272141);; 山东省优秀中青年科学家科研奖励基金(BS2011CL032);; 山东省高等学校科技计划项目(J12LA53)

作者(Author): 夏鹏成,韩冠朋,谢鲲,杨磊,葛学元

DOI: 10.13289/j.issn.1009-6264.2014.01.021

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