张艳姝,孙燕,杜敬霞

• 1:机械科学研究总院先进制造技术研究中心

摘要(Abstract)：

为研究300M高强钢的亚动态再结晶行为,采用Gleeble-3800型热模拟试验机对300M高强钢在变形温度900~1150℃、应变速率0.001~10 s-1,道次间隔保温时间1~60 s进行双道次热压缩试验。结果表明:变形温度越高、应变速率越大、道次间隔保温时间越长,亚动态再结晶百分数越大。基于试验结果建立了300M高强钢的亚动态再结晶动力学模型,并通过单道次压缩试验验证了模型的正确性。

关键词(KeyWords)： 300M高强钢;亚动态再结晶;双道次热压缩;动力学模型

Abstract:

Keywords:

基金项目(Foundation): 高档数控机床与基础制造装备科技重大专项(2011ZX04014-051,2012ZX04012011)

作者(Author): 张艳姝,孙燕,杜敬霞

DOI: 10.13289/j.issn.1009-6264.2014.08.025

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