杨玉芳,杨正山,王珺,刘家骅,崔君军

• 1:沈阳工学院
• 2:中航沈飞民用飞机有限责任公司
• 3:东北特殊钢集团有限责任公司

摘要(Abstract)：

将超纯铁素体不锈钢439板材在不同冷轧变形率下冷轧变形,然后将轧制态冷板在950~1050℃下进行退火,研究冷轧变形率对该材料退火组织及性能的影响。结果表明:随着变形率的增加,晶粒尺寸变小;50%变形率条件下冷板最高伸长率为36%,80%变形率条件下最高伸长率可达40%;基于金相试验数据,利用回归分析的方法计算了不同变形率条件下的晶粒长大激活能,得出50%和80%冷轧变形率条件下再结晶晶粒长大激活能分别为60.19 kJ/mol和65.68 kJ/mol;采用晶粒尺寸与晶界迁移激活能间的定量关系来描述晶粒长大过程,最终建立了该合金在试验温度范围内再结晶晶粒长大的动力学模型。

关键词(KeyWords)： 439超纯铁素体不锈钢;冷轧变形率;力学性能;微观组织;再结晶;激活能

Abstract:

Keywords:

基金项目(Foundation): 辽宁省博士启动基金(20170520004);; 辽宁省教育厅科学研究一般项目(W2015303)

作者(Author): 杨玉芳,杨正山,王珺,刘家骅,崔君军

DOI: 10.13289/j.issn.1009-6264.2018-0100

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