刘文月,任毅,张帅,王爽,张禄林

• 1:鞍钢股份有限公司技术中心
• 2:鞍钢股份有限公司产品制造部

摘要(Abstract)：

通过热模拟技术与显微分析方法研究了二次热循环对X100管线钢粗晶热影响区组织的影响规律,再热粗晶区的性能通过夏比V型缺口冲击试验表征。试验结果表明,当二次热循环的峰值温度处于(α+γ)两相温区,试验钢的临界粗晶热影响区出现局部脆化。局部脆化的原因主要有两个:一是临界粗晶热影响区组织粗化;另一是该区MA组元数量多,尺寸大,硬度高。

关键词(KeyWords)： X100管线钢;二次热循环;组织;粗晶热影响区

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘文月,任毅,张帅,王爽,张禄林

DOI: 10.13289/j.issn.1009-6264.2012.03.021

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