In-situ precipitation of carbides significantly enhances the hydrogen embrittlement resistance of advanced high-strength steels welded joints

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-01-09 DOI:10.1016/j.corsci.2025.112697

Junliang Xue , Wei Guo , Mingsheng Xia , Caiwang Tan , Jiaxin Shi , Yongxin Zhang , Zhandong Wan , Yulong Li , Hongqiang Zhang

引用次数: 0

Abstract

This study employed the laser in-situ post-weld heat treatment process to achieve in-situ precipitation of carbides (IPC) in the hydrogen embrittlement (HE) sensitive zone of QP980 steels laser welded joints. In the original joint with hydrogen pre-charging, cleavage fracture occurred at the inter-critical heat affected zone (ICHAZ). The IPC process only caused carbides to precipitate in martensite of the ICHAZ. The IPC joint with hydrogen pre-charging (5 min) exhibited ductile fracture at the base material during the slow strain rate tensile test, and the total elongation HE sensitivity of the joint was reduced from 84.6 % to 13.7 %.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.