Design of Composite Wire for Arc Welding and Ni₃Al-Based Alloys Surfacing

Abstract:

The composite wire compound calculation methods were considered, factoring stoichiometric ratio values of the elements of the intermetallic γ'-Ni₃Al, draft, elongation and compaction of the filling’s components as well as the values of alloy transfer effervescive. It is found that during argon-arc surfacing the components of the composite wire’s filling and coating are melting uniformly at the welding current density from 30 to 50 A/mm². The correlation was established between the composition, the construction of the composite wire for arc welding and surfacing and the structure of Ni₃Al based deposited metal. It is shown that the developed composite wire provides the deposited metal with the structure of nickel aluminide economically alloyed with wolfram, molybdenum, tantalum and chrome.

• Periodical: Key Engineering Materials (Volume 685)
• Pages: 495-499
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.685.495
• Online since: February 2016
• Authors: Yuri Dubtsov, Ilya Zorin, G.N. Sokolov, A.A. Artem'ev, V.I. Lysak
• Keywords: Arc Surfacing, Calculation Methods, Composite Wire, γ'-Ni₃Al-Based Alloy

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