陈孟,黄俊霞,叶晓宁

• 1:宝山钢铁股份有限公司研究院

摘要(Abstract)：

设计了一组不同成分的低镍铬锰氮奥氏体不锈钢,通过热轧、退火、冷轧及Gleeble热模拟,观察研究了实验钢在不同状态下的显微组织、力学性能及高温热变形行为的变化规律。结果表明:热轧后实验钢的强度随固溶温度的提高而降低,塑性随固溶温度的提高而增大,实验条件下的最佳固溶温度为1050℃;冷加工变形量的增大能显著提高显微组织中形变马氏体的含量,增大实验钢的强度、硬度和屈强比,降低断后伸长率,且在实验范围内抗拉强度与维氏硬度在数值上呈现近似3倍的关系。热加工过程中实验钢的易裂敏感区间约为750~950℃,最佳热加工区间为1000~1200℃。

关键词(KeyWords)： 低镍奥氏体不锈钢;亚稳态;形变诱导马氏体;加工硬化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 陈孟,黄俊霞,叶晓宁

DOI: 10.13289/j.issn.1009-6264.2016.03.014

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