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


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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.

作者简介

L. Efimenko

Russian Gubkin State University for Oil and Gas

编辑信件的主要联系方式.
Email: svarka@gubkin.ru
俄罗斯联邦, Moscow

O. Kapustin

Russian Gubkin State University for Oil and Gas

Email: svarka@gubkin.ru
俄罗斯联邦, Moscow

A. Ramus’

Russian Gubkin State University for Oil and Gas

Email: svarka@gubkin.ru
俄罗斯联邦, Moscow

R. Ramus’

Russian Gubkin State University for Oil and Gas

Email: svarka@gubkin.ru
俄罗斯联邦, Moscow

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