王斌,易丹青,刘会群,吴伯涛,袁均平

• 1:中南大学材料科学与工程学院

摘要(Abstract)：

观察了15Cr2Ni3MoW钢在200～600℃区间回火处理后的力学性能和组织变化。结果表明,该钢经350℃回火后出现大量稳定化的M/A岛,在500～550℃回火后M/A岛大量分解,析出的碳化物沿晶界连续分布,出现了回火脆性。试验获得的最佳回火工艺为:350℃回火3h后空冷,该工艺可使15Cr2Ni3MoW钢的屈服强度提高37%,冲击韧性提高50%。

关键词(KeyWords)： 15Cr2Ni3MoW钢;粒状贝氏体;回火;M/A岛;性能

Abstract:

Keywords:

基金项目(Foundation): 湖南省科技攻关项目(04GK1008-2)

作者(Author): 王斌,易丹青,刘会群,吴伯涛,袁均平

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