| Citation: |
Sun Xian. Relationship between microstructure of martensite weld with low transformation temperature and welding crack of high strength steel[J]. Welding & Joining, 2023（2）：53 − 64. DOI: 10.12073/j.hj.20220409001
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The relationship between microstructure of martensite weld with low transformation temperature and welding crack of high strength steel was reviewed. The results showed that among the influencing factors of cold cracking, the cracking tendency of martensitic welds was controlled by the competition between hydrogen embrittlement and tensile stress reduction effect. The relationship between martensitic weld with low transformation temperature and welding cold crack of high strength steel depended on the quality of martensitic weld, the relationship between stress state in weld and hydrogen behavior. The comprehensive process of “low-hydrogenation of weld metal” that minimized the amount of diffused hydrogen and was not enough to initiate hydrogen-induced cold cracks was often used in engineering and had achieved satisfactory results.
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