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Characterization of MoN coatings for pistons in a diesel engine

โœ Scribed by Hanbey Hazar

Publisher
Elsevier Science
Year
2010
Weight
372 KB
Volume
31
Category
Article
ISSN
0261-3069

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โœฆ Synopsis

In this study, the surface of a piston in a diesel engine was coated with molybdenum nitride (MoN) by using the arc PVD method, and its surface behaviour was subsequently analyzed. Analyses of microhardness, SEM, X-ray and surface roughness were carried out in order to examine surface characteristics of pistons. It is found that the hardness of coated piston is 2000 ยฑ 400 HV while hardness uncoated piston 123 HV. The results show less deformation and fewer scratches due to wear on the MoN-coated piston as compared to uncoated one.

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