冯金玉,唐荻,赵征志

• 1:北京科技大学冶金工程研究院

摘要(Abstract)：

应用扫描电镜(SEM)、拉伸试验、萃取复型和EBSD技术对实验室研制的X100管线钢在300、350和400℃卷取温度下的组织、力学性能、析出物状态和大小角度晶界进行了分析。结果表明:随着卷取温度的升高,X100管线钢强度降低,伸长率和冲击韧性上升,显微组织为针状铁素体(AF)、粒状贝氏体(GB)、板条贝氏体(LB)组织,M/A岛减少,析出物由铌、钛的碳、氮化物组成。结合轧后钢板的显微组织、力学性能分析,在300~350℃卷取试验钢的显微组织和力学性能可以达到X100级别管线钢的水平。

关键词(KeyWords)： X100管线钢;卷取温度;析出物

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 冯金玉,唐荻,赵征志

DOI: 10.13289/j.issn.1009-6264.2014.01.027

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