TPWJ, 2019, #6, 34-37 pages
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue #6, 2019 (June)
Filler flux-cored wire for tig welding and surfacing of VT22 titanium alloy
S.V. Akhonin and S.L. Schwab
E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: email@example.com
The paper considers an approach for selection of filler material in TIG welding of VT22 titanium alloy. It is shown that weld metal produced using pilot flux-cored wire PPT-22 is a representative of transient class of titanium alloys, to which VT22 alloy is referred (coefficient of β-stabilizing of such metal equals to 1). This wire can be used for argon-arc welding of high-strength VT22 titanium alloys. Mechanical properties of such welded joints after heat treatment reach the level of base metal indices. Application of PPT-22 wire in restoration argon-arc surfacing of VT22 alloy parts provides their high service characteristics. 15 Ref., 4 Tables, 5 Figures.
VT22 titanium alloy, flux-cored wire, TIG welding, restoration surfacing
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