TPWJ, 2014, #6-7, 135-138 pages
INVESTIGATION OF COMPOSITION AND STRUCTURE OF WELD METAL OF Kh20N9G2B TYPE MADE IN WET UNDERWATER WELDING
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue № 6-7, 2014 (June-July)
K.A. YUSHCHENKO, A.V. BULAT, N.Yu. KAKHOVSKY, V.I. SAMOJLENKO, S.Yu. MAKSIMOV and S.G. GRIGORENKO
E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: email@example.com
The advantages and disadvantages of existing technologies for strengthening the contact surfaces of working blades of gas turbines applying cast rods of stellite, nickel alloy KBNKhL-2 and plates of alloy KhTN-61 were studied. The necessity of development of new wear-resistant material for strengthening the shroud platforms of working blades was grounded. Two pilot alloys on the cobalt base of Co-Si-B and Co-Si-B-Cr3C2 systems were investigated. The high temperature wear resistance of materials was evaluated. 3 Tables, 1 Figure.
wet underwater welding, 12Kh18N10T steel, coated electrodes, weld metal, composition, structure, non-metallic inclusions
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