张朝磊,余伟铭,王嗣雯,余杰,张效夫,梁宵月

• 1:北京科技大学材料科学与工程学院
• 2:北京科技大学高等工程师学院

摘要(Abstract)：

通过球化退火实验,采用定量金相分析和显微硬度测定,研究了球化退火过程中微合金Nb对轴承钢GCr15碳化物析出和球化的影响。结果表明:实验钢800℃加热1 h后以15℃/h冷却球化退火过程中,添加0.018%和0.040%Nb虽然没有影响GCr15钢的碳化物析出和球化的温度,均为720~740℃,但是显著加快了GCr15钢碳化物析出和球化的速率。

关键词(KeyWords)： 轴承钢;球化退化;微合金化技术;碳化物

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费专项资金(FRF-TP-14-003A1)

作者(Author): 张朝磊,余伟铭,王嗣雯,余杰,张效夫,梁宵月

DOI: 10.13289/j.issn.1009-6264.2015.02.018

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