魏星,胡吟萍,潘利波

• 1:武汉钢铁(集团)公司研究院

摘要(Abstract)：

研究了连续退火均热段温度和平整工艺对冷轧超低碳BH钢的组织和力学性能的影响规律。结果表明,超低碳BH钢在740～850℃之间均能完成再结晶退火,且随着均热段温度的升高,BH钢的屈服强度和抗拉强度单调下降,n值单调上升;伸长率和r值先上升后下降,并同在820℃左右达到峰值;显微硬度也呈单调下降趋势。平整伸长率由0向1.8%增加过程中,钢板的强度呈下抛物线形变化;低于0.8%时会产生屈服平台;高于1.5%时,加工硬化加剧导致强度快速上升,屈服强度可在1.2%～1.5%之间达到最低值。

关键词(KeyWords)： 超低碳;BH钢;冷轧;连续退火;平整

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 魏星,胡吟萍,潘利波

DOI: 10.13289/j.issn.1009-6264.2012.02.025

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