韩佳伟,刘海春,戴联双,王策,邸新杰,利成宁

• 1:天津大学材料科学与工程学院
• 2:国家石油天然气管网集团有限公司
• 3:天津市现代连接技术重点实验室

摘要(Abstract)：

管线钢环焊缝作为管道运输的薄弱点,在富氢环境下服役极有可能发生氢脆从而影响运输安全。本文综述了高钢级管线钢焊接材料的发展现状,分别讨论了管线钢焊材的特点、管线钢环焊缝的强韧化机制和夹杂物对焊缝抗氢性能的影响机理。此外,还探讨了含稀土元素焊材的研究现状及其改善焊缝抗氢性能的作用机理,为新型环焊焊材的开发提供理论支撑。最后展望了防止管线钢环焊缝发生氢脆的研究方向,以期保障工程建设安全。

关键词(KeyWords)： 管线钢;环焊;微观组织;氢脆

Abstract:

Keywords:

基金项目(Foundation): 国家管网集团重大科技专项项目(WZXGL202105)

作者(Author): 韩佳伟,刘海春,戴联双,王策,邸新杰,利成宁

DOI: 10.13289/j.issn.1009-6264.2024-0486

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