黄苏起,李玲,吴晓春

• 1:上海大学材料科学与工程学院
• 2:省部共建高品质特殊钢冶金与制备国家重点实验室

摘要(Abstract)：

使用自主搭建的热熔损设备对4Cr3Mn1Mo2V钢和4Cr5Mo2V(DVA)钢进行动态铝液侵蚀实验。采用电子天平测量了两种钢熔损前后的质量,绘制了其在650℃的铝液中的动态质量损失曲线;采用光学显微镜和扫描电镜对实验钢表面进行观察和分析;利用X射线能谱(EDS)对熔损试样横截面进行成分分析,分析4Cr3Mn1Mo2V钢在铝液侵蚀过程中的失效机理。结果表明:4Cr3Mn1Mo2V钢在铝液中侵蚀60 min后受损程度小于DVA钢;实验钢在与铝液接触的过程形成了Fe-Al化合物层,DVA钢表面化合物层厚度大于4Cr3Mn1Mo2V钢;实验钢迎铝面的失效形式主要为基体氧化剥落,而背铝面的失效形式为Fe-Al化合物层的剥落。

关键词(KeyWords)： 新型热作模具钢;抗热熔损性能;Fe-Al化合物层

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2016YFB0300400);; 广东省重点领域研发计划(2020B010184002);; 省部共建高品质特殊钢冶金与制备国家重点实验室自主课题(SKLASS2019—Z017)

作者(Author): 黄苏起,李玲,吴晓春

DOI: 10.13289/j.issn.1009-6264.2021-0103

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