Effect of weld repair on microstructure and mechanical properties of API 5LX65 steel

Weld repair is a common technique to remove defects in the weldments. However, particularly in the high strength low alloy steels (HSLA), heat input during weld repair causes complex changes in the microstructure and mechanical properties. In this study, the influences of repeated heat input and thermal cycle upon repair weld on the microstructure and mechanical properties of the welded joints of API 5L X65 were investigated via optical microscopy, scanning electron microscopy; Charpy-V impact, Vickers hardness, and tension tests. The results were analyzed and evaluated for enhancement of strength and toughness of the repaired pipeline steels.
International Conference on Advances in Welding Science and Technology for Construction, Energy and Transportation, AWST 2010, held in Conjunction with the 63rd Annual Assembly of the International Institute of Welding, IIW 2010 (11 - 17 Temmuz 2010)


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Citation Formats
C. Batıgün, M. Demircan, and C. H. Gür, “Effect of weld repair on microstructure and mechanical properties of API 5LX65 steel,” İstanbul, Türkiye, 2010, p. 643, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79952586279&origin=inward.