A Study on Wear Behaviour of NiCrBSi Flame Sprayed Coatings

Abstract:

TThe present study is an attempt to observe and evaluate the dry rolling wear behavior [1] of three types of Ni-base coatings on an Amsler type wear machine, against low-alloyed steel discs. The tested coatings were obtained by flame spraying (on the same low-alloyed steel substrate as the discs) using commercial Ni-base self-fluxing powders: 1060-00 and 1355-20 type (manufactured by Hoganas) and JK 586 type (manufactured by Deloro Stelite Co). In order to increase the strength of the layers, the deposition was followed by fusing [2]. The tests were conducted on pairs of coated – uncoated discs at the same load and the same speed in all three cases. In order to evaluate the wear behavior, there were observed and measured the surface roughness and the rolling path profiles. A severe wear regime with adhesion as the main phenomenon was observed in case of the low-alloyed steel discs.

• Periodical: Advanced Materials Research (Volume 1128)
• Pages: 332-337
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1128.332
• Online since: October 2015
• Authors: Constantin Paulin, Daniela Lucia Chicet*, Bogdan Istrate, Petru Avram, Corneliu Munteanu
• Keywords: Flame Spraying, NiCrBSi Coating, Wear

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