Features of welded joints based on zirconium-niobium alloy

Features of welded joints based on zirconium-niobium alloy

The research results of the weldability evaluation and the development of technology for electron-beam, laser, and argon-arc welding of zirconium alloy are presented. The weldability of zirconium alloy with titanium alloy OT4 at EBW is studied. Optimum parameters of welding modes, which allow obtain...

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Bibliographic Details
Published in:Welding international Vol. 34; no. 1-3; pp. 119 - 124
Main Authors: Gareev, I. S., Sobko, S. A., Smirnov, Yu. G., Pisarev, M. C., Lezhnev, D. N., Ageev, K. A.
Format: Journal Article
Language:English
Published: Cambridge Taylor & Francis 03-03-2020
Taylor & Francis Ltd
Subjects:
Argon
argon-arc welding
Base metal
Electron beam welding
Gas tungsten arc welding
Laser beam welding
laser welding
Metallography
Microhardness
Niobium base alloys
titanium alloy
Titanium alloys
Titanium base alloys
Weldability
Welded joints
Welded structures
Welding parameters
zirconium alloy
Zirconium alloys
Zirconium base alloys
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Summary:The research results of the weldability evaluation and the development of technology for electron-beam, laser, and argon-arc welding of zirconium alloy are presented. The weldability of zirconium alloy with titanium alloy OT4 at EBW is studied. Optimum parameters of welding modes, which allow obtaining high-quality welded joints with a complete fusion without internal defects, are determined. A comparative analysis of the welding method influence on the properties of welded joints is performed through the use of a set of analytical methods of investigation (metallography, microhardness measuring and fractography). The advantages of EBS are shown. The research results allow to recommend zirconium and alloys based on it as a constructional material for the production of welded structures with through seams and strength of joints of at least 90 % of the strength of the base metal.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2021.1921388