The Paton Welding Journal, 2010, №03



2010 №03 (05)

2010 №03 (07)

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TPWJ, 2010, #3, 29-32 pages
 
PRODUCTION OF POWDER OF THE Ni-Cr-Al-Y SYSTEM ALLOY DOPED WITH SILICON BY THE POWDER METALLURGY METHOD


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 3, 2010 (March)
Pages                      29-32
 
 
Authors
E.A. ASTAKHOV¹, I.V. KUD², L.S. LIKHODED², D.P. ZYATKEVICH², M.S. YAKOVLEVA² and L.I. ERYOMENKO^2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
²I.N. Frantsevich Institute of Problems of Materials Science (IPM), NASU, Kiev, Ukraine
 
 
Abstract
The influence of solid-phase interaction of Ni-Cr-Al-Y alloy with silicon at up to 1100 °C temperature was studied. It was established that to produce the Ni-Cr-Al-Y + Si alloy it is expedient to use nickel mechanically doped with silicon as one of the initial intermetallic components of the alloy, this preventing presence of free silicon in the alloy and ensuring uniform distribution of silicon through the powder volume.
 
 
Keywords: detonation spraying, powders, heat-resistant alloy Ni-Cr-Al-Y, mechanical doping with silicon, solid-phase interaction, phase composition, distribution of doping elements
 
 
Received:                ??.??.??
Published:               28.03.10
 
 
References
1. (1995) Superalloys II: High-temperature materials for aerospace and industrial power units. Book 1. Moscow: Metallurgiya.
2. Li, W.Z., Yao, Y., Wang, Q.M. et al. (2008) Improvement of oxidation resistance of NiCrAlY coatings by application of CrN or CrON interlayer. J. Mater. Res., 23(2), 341-352.
3. Brodin, H., Eskner, M. (2004) The influence of oxidation on mechanical and fracture behavior of an air plasmasprayed NiCoCrAlY bondcoat. Surface Coat. Technol., 187, 113-121.
4. Liang, J.J., Wei, H., Hou, G.C. et al. (2008) Thermal stability of phases in a NiCoCrAlY coating alloy. J. Mater. Res., 23(8), 2264-2274.
5. (1995) Superalloys II: High-temperature materials for aerospace and industrial power units. Book 2. Moscow: Metallurgiya.
6. Samsonov, G.V., Dvorina, L.A., Rud, B.M. (1979) Silicides. Moscow: Metallurgiya.
7. Schapck, F. (1973) Structure of binary alloys. Moscow: Metallurgiya.

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