The Paton Welding Journal, 2012, №07



2012 №07 (01)

2012 №07 (03)

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The Paton Welding Journal, 2012, #7, 5-10 pages  

APPLICATION OF POWDERS OF COBALT AND NICKEL ALLOYS FOR PLASMA SURFACING OF EXHAUST VALVES OF INTERNAL COMBUSTION ENGINES

E.F. PEREPLYOTCHIKOV

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Properties of alloys based on cobalt and nickel for plasma surfacing of exhaust valves of gasoline and diesel engines of cars and lorries as well as engines of diesel locomotives and ships are considered. Recommendations on application of powders of various compositions for valve surfacing are given.
 
 
Keywords: welded joints, group defect interaction, parallel defects, collinear defects, fracture probability
 
 
Received:                18.04.12
Published:               28.07.12
 
 
References
1. Gladky, P.V., Pereplyotchikov, E.F., Ryabtsev, I.A. (2007) Plasma surfacing. Kiev: Ekotekhnologiya.
2. Kopylov, D.Yu., Amanov, S.R. (2001) Study of principles of thermal cycle effect on properties of coating with EP-616A alloy. In: Science, technique and education in Toliatty city and Volzhsky region. Pt 2. Tolyatti: TolPI.
3. Amanov, S.R., Kargin, A.V., Kopylov, D.Yu. et al. (2005) Technology of plasma-powder surfacing of exhaust valves of automobile engines VAZ. Svarochn. Proizvodstvo, 2, 33-40.
4. Wu, J.B.C., Redman, J.E. (1994) Hardfacing with cobalt and nickel alloy. Welding J., 9, 63-68.
5. Malyshevsky, V.A., Muraviov, K.K. (1962) Structure and properties of cobalt stellites. In: Properties of materials in turbine construction and methods of testing. Ed. by A.I. Chizhik. Moscow; Leningrad: Mashgiz.
6. Knotek, O., Lugscheider, E., Eschnauer, H. (1975) Hardlegierungen zum Verschleis. Schutz. Duesseldorf.

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