宋明强,李俊儒,龚臣,陈列,佐辉,刘雅政

• 1:北京科技大学材料科学与工程学院
• 2:西宁特殊钢股份有限公司

摘要(Abstract)：

用热处理正交实验方法研究了淬火工艺与回火工艺对KT5331(10Cr11Co3W3Ni Mo VNb NB)钢力学性能的影响。结果表明,KT5331钢的最佳热处理工艺为1080℃保温60 min淬火,680℃保温2 h以上回火,组织为板条状的回火马氏体;淬火和回火参数中,回火温度是影响KT5331钢热处理后力学性能的最主要因素,淬火温度及回火温度对冲击功影响最为明显。淬火温度由1080℃升高至1120℃时奥氏体晶粒出现明显长大;随回火温度升高,材料屈服强度、抗拉强度和硬度明显降低,而冲击功显著升高。

关键词(KeyWords)： KT5331;热处理;正交实验;力学性能

Abstract:

Keywords:

基金项目(Foundation): “十二五”国家863计划项目(2012AA03A502)

作者(Author): 宋明强,李俊儒,龚臣,陈列,佐辉,刘雅政

DOI: 10.13289/j.issn.1009-6264.2015.09.011

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