Effect of Heat Treatment on Impact Strength of Welded Joint Metal Made by Submerged-Arc Welding

A study of the morphology of the metal structure in the near-seam section of the heat-affected zone (HAZ) is performed by simulating pipe manufacture. The influence of microstructure on HAZ metal resistance to brittle fracture is estimated. Causes for low values of the impact toughness of the HAZ me...

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Veröffentlicht in:	Metallurgist (New York) 2018-07, Vol.62 (3-4), p.254-260
Hauptverfasser:	Efimenko, L. A., Esiev, T. S., Ponomarenko, D. V., Sevast’yanov, S. P., Utkin, I. Yu
Format:	Artikel
Sprache:	eng
Schlagworte:	Arc welding Characterization and Evaluation of Materials Chemistry and Materials Science Fracture toughness Heat affected zone Heat treating Heat treatment Impact strength Materials Science Metallic Materials Microstructure Morphology Pipe and tube industry Welded joints Welding
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Beschreibung
Zusammenfassung:	A study of the morphology of the metal structure in the near-seam section of the heat-affected zone (HAZ) is performed by simulating pipe manufacture. The influence of microstructure on HAZ metal resistance to brittle fracture is estimated. Causes for low values of the impact toughness of the HAZ metal are revealed as well as the possibility of improvement by carrying out post-welded metal local heat treatment.
ISSN:	0026-0894 1573-8892
DOI:	10.1007/s11015-018-0653-7