Study of the Features of Obtaining Bimetallic Pipes and Rods by Explosion Welding with Subsequent Hot Deformation

In this paper, we study the features of obtaining bimetallic pipes and rods using explosion welding and subsequent hot deformation. Explosion welding allowed obtaining continuous cylindrical two-layer billets with a combination of steel 20 + 08Cr18Ni10Ti layers with almost 100% adhesion of the layer...

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Bibliographic Details
Published in:Inorganic materials : applied research 2020, Vol.11 (5), p.1222-1228
Main Authors: Malakhov, A. Yu, Saikov, I. V., Denisov, I. V., Saikova, G. R., Gamin, Yu. V., Romantsev, B. A., Gulyaev, P. Yu
Format: Article
Language:English
Subjects:
Billets
Bimetals
Chemistry
Chemistry and Materials Science
Corrosion resistance
Diameters
Explosions
Industrial Chemistry/Chemical Engineering
Industrial development
Inorganic Chemistry
Materials Science
New Technologies for Design and Processing of Materials
Plastic deformation
Protective coatings
Rods
Surface defects
Thickness
Welding
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Summary:In this paper, we study the features of obtaining bimetallic pipes and rods using explosion welding and subsequent hot deformation. Explosion welding allowed obtaining continuous cylindrical two-layer billets with a combination of steel 20 + 08Cr18Ni10Ti layers with almost 100% adhesion of the layers, without surface defects, and with a specified residual deformation in diameter. We determined that replacing the atmosphere with helium in the welding gap does not reduce or eliminate microdefects in the joint. Subsequent hot plastic deformation did not affect the ratio of the component layer thicknesses. A combined technology for the production of bimetallic pipes and rods with a combination of steel 20 + 08Cr18Ni10Ti layers, which allows obtaining pipes and rods with a corrosion-resistant coating and sizes that are included in the range of pipes used in the energy industry, was developed and tested.
ISSN:2075-1133
2075-115X
DOI:10.1134/S2075113320050202