Open AccessINVESTIGATION OF THE MUTUAL INFLUENCE OF WELDING TECHNOLOGY AND HEAT TREATMENT OF WELDED JOINTS MADE OF DISSIMILAR GRADES OF STEEL
Author(s) -
М. В. Ефимов,
Н. А. Кидалов,
N. I. Gabelchenko,
D. O. Aliev,
L.S. Semenova
Publication year - 2021
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2021-7-254-83-87
Subject(s) - welding , materials science , joint (building) , metallurgy , manganese , work (physics) , molybdenum , heat affected zone , electric resistance welding , composite material , mechanical engineering , structural engineering , engineering
The work is devoted to the study of welding and heat treatment modes of dissimilar steels: low-alloyed manganese-silicon and heat-resistant chromium-molybdenum to ensure the strength of the welded joint in accordance with the requirements of the current NTD. To achieve this goal, special welding processes were developed, which consist in changing the geometry of the preparation of the edges of the welded joints and tightening the tolerance for the temperature limits of heat treatment. The presented measures make it possible to ensure the mechanical and operational properties of welded joints at the required level.