EFFECT OF STRESS STATE ON THE STRUCTURE AND PROPERTIES OF CONSTRUCTIONS OF STEELS AND ALLOYS AT WELDING
https://doi.org/10.17073/0368-0797-2016-4-251-255
Abstract
The paper presents the analysis of the residual stresses caused by the processes of technological welding cycle of steels and alloys. It has been found that the maximum residual stresses arise during cooling of the weldment. The research has established a satisfactory convergence of the calculation results of the mathematical and experimental design values of strain during welding on a special stand that allows identifying the direction of internal stresses action, as well as assessing the geometry details on the calculation model of temperature fields in butt welding of steel and titanium billets. In the article the authors show the possibility of using the coercimeter to assess the stress state of the material, its defects, the ability to predict the structural state and properties of welded joints. The studies have enabled the authors to give an opinion on the timing and dynamics of the flow of welding deformation as a result of internal residual stresses and structural changes caused by the welding process.
About the Authors
V. I. Murav’ev
Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Chief Researcher, Professor of the Chair “Mechanical Engineering and Metallurgy”
P. V. Bakhmatov
Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor, Head of the Chair “Mechanical Engineering and Metallurgy”
N. O. Pletnev
Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia
Russian Federation
Russian Federation
Postgraduate of the Chair “Mechanical Engineering and Metallurgy”
A. A. Debelyak
Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia
Russian Federation
Russian Federation
Postgraduate of the Chair “Mechanical Engineering and Metallurgy”
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Review
For citations:
Murav’ev V.I., Bakhmatov P.V., Pletnev N.O., Debelyak A.A. EFFECT OF STRESS STATE ON THE STRUCTURE AND PROPERTIES OF CONSTRUCTIONS OF STEELS AND ALLOYS AT WELDING. Izvestiya. Ferrous Metallurgy. 2016;59(4):251-255. (In Russ.) https://doi.org/10.17073/0368-0797-2016-4-251-255
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