The Paton Welding Journal, 2017, №02

2017 №02 (09)

DOI of Article 10.15407/tpwj2017.02.01

2017 №02 (02)

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TPWJ, 2017, #2, 2-6 pages
 
Effect of energy parameters of microplasma powder surfacing modes on susceptibility of nickel alloy ZhS32 to crack formation

Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue #2, 2017 (February)
Pages 2-6
 
 
Authors
K.A. Yushchenko, A.V. Yarovitsyn and N.O. Chervyakov
E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua  
Abstract
Presented is a technological experience of the E.O. Paton Electric Welding Institute in area of development of surfacing technologies for serial repair of blade flanges of aircraft GTE of nickel heat-resistant alloys ZhS26 and ZhS32 with oriented crystallization based on microplasma powder surfacing. It is shown that heat input value in a single-layer or multilayer surfacing using up to 40 A welding current can uniquely determine susceptibility to crack formation in «base–deposited metal» joints. A range of values of total heat input was determined. They can be used to predict absence or presence of cracks (hot or reheating cracks) with high probability. 18 Ref., 7 Figures.
 
Keywords: nickel heat-resistant alloys, microplasma powder surfacing, weldability, crack formation susceptibility, effective heat power of arc, heat input, total heat input
 
 
Received: 01.08.17
Published: 16.03.17
 
 
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