陈雷,王建峰,龙红军,毛天桥,李飞,张英杰,裴建明

• 1:燕山大学国家冷轧板带装备及工艺工程技术研究中心

摘要(Abstract)：

基于"高温单相处理、重度冷变形及双相区固溶处理"双相不锈钢的细匀化工艺获得了细小均匀的双相(α+γ)组织,借助光学显微镜(OM)、电子背散射衍射技术(EBSD)研究了固溶处理对细匀化工艺中显微组织演变的影响。结果表明:与"双相区变形+固溶处理"工艺相比,细匀化工艺组织中的γ相大多从α相的三叉晶界处析出,其沿变形方向的带状分布得到明显改善且两相的晶粒尺寸差异较小,均匀化程度显著提高;另外,在相同的固溶处理下,两种工艺中的两相比例基本相同。而在细匀化工艺中,γ相尺寸随加热温度的升高与保温时间的延长而增大;在1050~1150℃加热,保温10 min条件下,γ相的尺寸与加热温度之间呈线性关系;在1100℃加热,保温10~60 min条件下,γ相尺寸的立方与保温时间之间同样呈近线性关系。

关键词(KeyWords)： 双相不锈钢;细匀组织;固溶处理;EBSD

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51101136);; 国家冷轧板带装备及工艺工程技术研究中心开放课题(NECSR-201501);; 河北省高等学校科学技术研究青年基金(QN2014107);; 河北省自然科学基金-钢铁联合基金(E2016203284)

作者(Author): 陈雷,王建峰,龙红军,毛天桥,李飞,张英杰,裴建明

DOI: 10.13289/j.issn.1009-6264.2016.05.012

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