Investigation of the Relationship of the Chemical, Phase Composition with the Mechanical Properties of the Transition Zone of the Welded Joint А182 + 321
V.B. Dementyev, A.A. Shushkov, S.L. Kim, V.V. Romankodownload PDF
Abstract. The physical and mechanical characteristics of the transition zone of the welded joint of steels A182 + 321, obtained by explosion welding, have been investigated. The width of the transition zone of a bimetallic joint based on A182 and 321 steels has been measured in various ways: according to the calculated and experimental data, which are in good agreement, it is about 8 μm. The dependences of the average values of hardness and the reduced modulus of elasticity of the metal of the investigated transition zone and the steels that make up the bimetal are obtained. The hardness of steels prior to explosion welding is 3.11 GPa and 5.30 GPa, respectively. The average value of the transitional hardness takes a value close to the hardness of the base metal (0.17 units lower) and is 2.94 GPa. A similar relationship was found when measuring the elastic modulus. The phase composition of the explosion welded joint made of steels A182 and 321 was studied, the width of the transition zone was determined. The dependence of the amount of retained austenite on the content of Ni and Cr in the transition zone and the relationship with the reduced modulus of elasticity and hardness are established.
Welded Connections, Transition Zone, Hardness, Elastic Modulus, Chemical and Phase Composition, Nanoindentation, NanoTest 600
Published online 1/5/2022, 12 pages
Copyright © 2022 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: V.B. Dementyev, A.A. Shushkov, S.L. Kim, V.V. Romanko, Investigation of the Relationship of the Chemical, Phase Composition with the Mechanical Properties of the Transition Zone of the Welded Joint А182 + 321, Materials Research Proceedings, Vol. 21, pp 1-12, 2022
The article was published as article 1 of the book Modern Trends in Manufacturing Technologies and Equipment
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