余万华,高山,刘飞,刘力哲,孙理,刘澄

• 1:北京科技大学材料科学与工程学院
• 2:青岛钢铁集团公司第二高速线材厂

摘要(Abstract)：

对80级帘线钢C82DA和90级帘线钢C92DA化学成分进行检测,分析化学成分中合金元素差异对其相变的影响。采用光学显微镜、扫描电镜(SEM)、热膨胀仪和显微硬度仪,对比研究C82DA和C92DA的相变规律;相同热处理条件下的相变点、显微组织、珠光体片层间距;以及通过等温转变实验得到的相变动力学方程,并对参数n值和k值关系进行对比。结果表明:C92DA钢中的C、Si、Cr含量要高于C82DA,因此C92DA的片层间距要比C82DA细密,C92DA的n值要比C82DA大。这些结果对制定生产工艺和构建在线质量预报模型提供了基础数据。

关键词(KeyWords)： 帘线钢;高碳钢;冷速;显微组织;相变模型

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 余万华,高山,刘飞,刘力哲,孙理,刘澄

DOI: 10.13289/j.issn.1009-6264.2014.11.025

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