田子启,曹建春,周晓龙,雍岐龙,陈宣宇,秦斌

• 1:昆明理工大学材料科学与工程学院
• 2:钢铁研究总院工程用钢研究所

摘要(Abstract)：

针对Ti微合金化钢和Ti-Mo复合微合金化钢,采用淬火+回火的热处理工艺,利用扫描电镜(SEM)和透射电镜(TEM)等研究了回火温度和Mo对Ti微合金化钢组织和力学性能的影响。研究结果表明:随回火温度升高,板条马氏体逐渐转变成铁素体,两种试验钢的硬度都呈现先增大后减小的趋势;最佳的回火温度为600℃。对比两种试验钢的研究结果表明,Mo的加入使得Ti微合金化钢回火过程中板条马氏体转变为铁素体的倾向增强,析出相尺寸变小,可获得10 nm以下的(Ti,Mo)C析出颗粒,提高Ti微合金化钢的综合力学性能。

关键词(KeyWords)： Ti微合金化钢;Mo;回火温度;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 田子启,曹建春,周晓龙,雍岐龙,陈宣宇,秦斌

DOI: 10.13289/j.issn.1009-6264.2016.06.026

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