Open AccessSemi-automatic welding in the environment of protective gases of welded structures from hardening steels with regulation of thermal cycles
Author(s) -
Н В Жаринова,
М. В. Вакуленко
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1155/1/012025
Subject(s) - welding , materials science , metallurgy , austenite , hardening (computing) , joint (building) , work hardening , pearlite , carbon steel , composite material , austenitic stainless steel , heat affected zone , structural engineering , microstructure , corrosion , layer (electronics) , engineering
In order to increase the technological and operational strength of welded joints of type X12CrMo5 steels in the process of welding in a protective gas environment, it is possible to use vibration deformation treatment of a welded joint with a pearlite joint to form a metal structure of a welded joint with minimal sensitivity to the formation of cold cracks due to an increase in the rate of heating and cooling, reduction of residence duration and provision of conditions of high-temperature decay of austenitic metal structures in seam and near-seam zones above critical temperatures. The work carried out research on the process of semi-automatic welding in the medium of protective gases in the mixture of carbon dioxide and argon with pearlite and austenitic welding materials of welded structures from hardening steels of grades 12Kh2M1 and X12CrMo5 with regulation of thermal cycles (RTC) due to the use of vibration deformation treatment and accompanying forced cooling.