Features of welded joints based on zirconium-niobium alloy. Issue 1 (3rd March 2020)

• Record Type: Journal Article
• Authors: Gareev, I. S.; Sobko, S. A.; Smirnov, Yu. G.; Pisarev, M. C.; Lezhnev, D. N.; Ageev, K. A.
• Is Part Of: Welding international. Volume 34:Issue 1/2/3(2020)
• Page Start: 119
• Page End: 124
• Publication Date: 2020-03-03
• Subjects: Weldability -- argon-arc welding -- laser welding -- electron-beam welding -- zirconium alloy -- titanium alloy; Welding -- Periodicals; Welding -- Automation -- Periodicals; 671.52
• DOI: 10.1080/09507116.2021.1921388
• Languages: English
• ISSNs: 0950-7116

Abstract

ABSTRACT: 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.