李志强,温治,张瑞杰,苏福永,周钟檀

• 1:北京科技大学热能工程系
• 2:北京科技大学新材料技术研究院

摘要(Abstract)：

运用X射线测定了GCr15轴承钢连铸坯芯部宏观偏析区域和微观偏析区域C、Cr元素的浓度。基于C和Cr元素成分分布,用Thermo-Calc软件计算了GCr15轴承钢不同部位的熔点,从而确定了轴承钢连铸坯均匀化加热的最高温度限制。研究了不同温度下消除连铸坯芯部大块状碳化物所需要的时间。通过理论与实验相结合的方法,提出了一系列消除轴承钢连铸坯芯部大块状碳化物的热处理制度。

关键词(KeyWords)： GCr15轴承钢;偏析;大块状碳化物;热处理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51276015)

作者(Author): 李志强,温治,张瑞杰,苏福永,周钟檀

DOI: 10.13289/j.issn.1009-6264.2015.s2.018

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