惠亚军,于洋,王畅,王林,陈斌,李文远,焦会立

• 1:首钢技术研究院薄板研究所
• 2:首钢迁安钢铁有限责任公司热轧作业部

摘要(Abstract)：

对钛微合金化热轧高强钢奥氏体晶粒粗化行为进行了实验研究。结果表明:当保温时间相同时,随着加热温度的升高,实验钢奥氏体平均晶粒尺寸呈现出先缓慢上升后迅速上升的趋势;当加热温度相同时,实验钢奥氏体平均晶粒尺寸随着等温时间的延长呈抛物线规律长大,1150℃加热奥氏体平均晶粒尺寸与保温时间的经验公式为:D1150℃=17.1 t0.2385,1250℃加热奥氏体平均晶粒尺寸与保温时间的经验公式为:D1250℃=29.9 t0.2916。综合考虑加热温度与保温时间对实验钢奥氏体晶粒尺寸的影响,并考虑微合金元素的溶解与析出规律,实验钢的加热温度定为1250℃左右,保温时间定为40 min较合适。

关键词(KeyWords)： 加热温度;保温时间;钛微合金化;高强钢;奥氏体晶粒

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 惠亚军,于洋,王畅,王林,陈斌,李文远,焦会立

DOI: 10.13289/j.issn.1009-6264.2014.12.025

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