黄进峰,张程,连勇,刘建伟,于一鹏,张济山

• 1:北京科技大学新金属材料国家重点实验室
• 2:北京科技大学新材料技术研究院

摘要(Abstract)：

分别采取铸造和喷射成形两种工艺制备含铌高速钢W6Mo5Cr4V2(M2-Nb)。结合锻后合金在热处理过程中的室温硬度与显微组织的关系,确定两种高速钢相应的最佳淬火及回火温度,以及在此基础上重点对比分析了两者在各自最佳热处理制度下的高温性能。结果表明:由于M2-Nb沉积态组织由均匀细小的等轴晶组成,碳化物沿晶界均匀分布,其锻件在经1180℃淬火,并在560℃下进行3次回火热处理后,不仅室温硬度较最佳热处理条件下的铸锻高速钢高出2.6 HRC,高温性能也更加优异。

关键词(KeyWords)： 喷射成形;铸造;高速钢;室温硬度;高温性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 黄进峰,张程,连勇,刘建伟,于一鹏,张济山

DOI: 10.13289/j.issn.1009-6264.2014.08.023

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