Control of Softening Processes in the Heat-Affected Zone During Welding of High-Strength Steels

The hardness and the structure of the heat-affected zone (HAZ) under welding of tube steels of strength category K60 – K70 are studied. The steels are treated by regimes imitating the thermal cycles of different welding processes applied to tubes starting with manual arc welding and ending with ener...

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Veröffentlicht in:	Metal science and heat treatment 2016-11, Vol.58 (7-8), p.435-441
Hauptverfasser:	Efimenko, L. A., Kapustin, O. E., Ramus’, A. A., Ramus’, R. O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Engineering Thermodynamics Hardness (Materials) Heat and Mass Transfer Materials Science Metallic Materials Metals (Materials) Welded Joints
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Beschreibung
Zusammenfassung:	The hardness and the structure of the heat-affected zone (HAZ) under welding of tube steels of strength category K60 – K70 are studied. The steels are treated by regimes imitating the thermal cycles of different welding processes applied to tubes starting with manual arc welding and ending with energy-intensive automatic submerged-arc welding. The welding modes causing maximum decrease in the hardness of HAZ regions are determined. The conditions preventing softening under one-pass and multipass welding of high-strength steels are presented.
ISSN:	0026-0673 1573-8973
DOI:	10.1007/s11041-016-0031-7