The Influence of Plastic Strain on the Corrosive Properties of Plasma Sprayed Intermetallic NiAl and Ni3Al Coatings

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The paper presents the preliminary research results that were aimed at working out a technology of the surface roughness reduction by means of plastic working methods. The intermetallic phase NiAl and Ni3Al coatings that were plasma sprayed on a flat bar made of non-alloy steel (C45) were chosen for the research. The coatings underwent plastic working with the use of press. Three specific loads were used: 500, 800, 1100 MPa. The treated coatings exhibited 70% lower surface roughness as compared to thermally sprayed layers. However, high values of relative strain of coatings ( = 0.21 – 0.62) were obtained. Plastic working resulted in the decrease of corrosive potential values and increase of corrosive current density.

Info:

Periodical:

Solid State Phenomena (Volume 165)

Edited by:

Andrejus H. Marcinkevičius and Algirdas V.Valiulis

Pages:

177-182

DOI:

10.4028/www.scientific.net/SSP.165.177

Citation:

R. Starosta "The Influence of Plastic Strain on the Corrosive Properties of Plasma Sprayed Intermetallic NiAl and Ni3Al Coatings", Solid State Phenomena, Vol. 165, pp. 177-182, 2010

Online since:

June 2010

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$35.00

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