霍向东,侯亮,李烈军,刘江,彭政务,夏继年

• 1:江苏大学材料科学与工程学院
• 2:华南理工大学国家金属材料近净成形工程技术研究中心

摘要(Abstract)：

依据薄板坯连铸连轧工艺,在Gleeble 3800热模拟机上研究了钛微合金化高强钢的再结晶行为。结果表明:在低应变速率和高温下变形容易发生动态再结晶,而所有试验温度在ε=1 s~(-1)时均表现为动态回复型;静态再结晶软化率会随着道次间隔时间、变形温度、变形速率、变形量的增加而升高;950℃以下变形随着道次间隔时间延长,会发生纳米碳化物的应变诱导析出,抑制静态再结晶发生。连轧过程中的变形速率远大于1 s~(-1),不具备发生动态再结晶的条件;在连轧总变形量不变的前提下,采取前后加强、中间减弱的道次变形量分配方式,细化成品组织。

关键词(KeyWords)： 钛微合金钢;薄板坯连铸连轧;动态再结晶;静态再结晶;应变诱导析出

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 霍向东,侯亮,李烈军,刘江,彭政务,夏继年

DOI: 10.13289/j.issn.1009-6264.2017.04.018

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