魏扬华,黄文静,邢军,丁汉林,王子健,陈其伟

• 1:安徽工业大学冶金工程学院
• 2:马鞍山钢铁股份有限公司技术中心
• 3:苏州大学沙钢钢铁学院

摘要(Abstract)：

采用光学显微镜(OM)、透射电镜(TEM)及有限元分析(FEA)等研究了轧制工艺对Fe-0.2C-1.45Mn-Nb-V-Ti钢板厚方向的组织和力学性能均匀性的影响。结果表明：在压缩比受限的条件下，利用奥氏体晶界促进形核的机制(即边界诱导相变机制，BIT机制)可以达到细化晶粒的目的，试验钢的平均晶粒尺寸均小于10μm;结合温度与累计应变的反向分布特点和轧制工艺的优化，轧制63 mm厚的试样表面和中心晶粒尺寸偏差小于2μm,有效改善了晶粒尺寸沿板厚方向的偏差。在本文的轧制工艺下，提高了厚板沿厚度方向的组织均匀性，获得了优异的力学性能。

关键词(KeyWords)： 轧制;厚板;晶粒细化;再结晶;累计应变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52174369)

作者(Author): 魏扬华,黄文静,邢军,丁汉林,王子健,陈其伟

DOI: 10.13289/j.issn.1009-6264.2022-0543

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