Open AccessInfluence of low temperature on structure and impact strength of structural steels welded joints
Author(s) -
Yu. N. Saraev,
Н. И. Голиков,
Ekaterina M. Maksimova,
Михаил Сидоров
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1546/1/012068
Subject(s) - welding , materials science , joint (building) , arc welding , crystallization , metallurgy , structural engineering , engineering , chemical engineering
The article is devoted to the study of the relationship between climatic conditions of construction, installation and repair during the operation of industrial technical systems and the structure and properties of welded joints of structural steels. It has been established that the main technological factor affecting the crystallization of the weld metal from the melt is the heat input transmitted by the heating source - an electric arc, during welding at all intervals of the formation of one-piece joints. The research results made it possible to justify the conditions under which the formation of one-piece compounds occurs. The frequency ranges of controlled heat input, that maintain a specified set of welded joints mechanical properties are determined.