王莹,赵征志,朱涛

• 1:马鞍山钢铁股份有限公司
• 2:北京科技大学冶金工程研究院

摘要(Abstract)：

用扫描电镜(SEM)和拉伸试验研究了控冷工艺对X100管线钢力学性能和显微组织的影响,用透射电镜对X100高钢级管线钢的微观结构、析出物的形态和分布等进行研究。结果表明:卷取温度和冷却速度显著影响X100管线钢的组织和力学性能。随着卷取温度的降低和轧后冷却速率的升高,试样的强度提高,伸长率下降。以粒状贝氏体GB(Granular Bainite)为主的基体加上少量贝氏体铁素体BF(Bainite Ferrite)及弥散分布的细小M/A构成的组织具有较好的强度和韧性匹配。

关键词(KeyWords)： X100管线钢;粒状贝氏体;析出物;性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王莹,赵征志,朱涛

DOI: 10.13289/j.issn.1009-6264.2012.11.023

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