丁开勇,李雷,冀国良,李强

• 1:河南理工大学材料科学与工程学院

摘要(Abstract)：

利用Gleeble-3500型热模拟试验机研究不同加热温度(900~1200℃)和保温时间(3~60 min)下轴承钢M50NiL的奥氏体晶粒长大规律。结果表明:随着加热温度的升高和保温时间的延长,M50NiL钢奥氏体晶粒尺寸都会增大。在温度低于1100℃时,奥氏体晶粒长大较缓慢,M50NiL钢表现出良好的抗晶粒粗化能力,但是当温度升高到1200℃时,保温时间小于30 min时,奥氏体晶粒迅速长大;通过对试验数据进行线性拟合得出了M50NiL钢奥氏体晶粒长大模型。

关键词(KeyWords)： M50Ni L钢;奥氏体晶粒长大;晶粒粗化

Abstract:

Keywords:

基金项目(Foundation): 国防973子课题(KZ65120305)

作者(Author): 丁开勇,李雷,冀国良,李强

DOI: 10.13289/j.issn.1009-6264.2016.11.028

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