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Abstract

This paper reports a new surface modification technique that couples high power CO₂ laser processing with low pressure plasma spray coating. In order to clarify the effect of laser irradiation on tribological properties, everal metal and ceramic films have been synthesised using a laser and plasma hybrid spraying (LP HS) system. Tribological characterisation of the films was achieved by a sliding test with oil lubrication. The results show that it is possible to produce a highperformance tribomaterial possessing good adhesion and little microporosity with the LP HS system. Analysis of X RD results suggests that a metastable state is formed by laser irradiation during the spraying process, which is closely related to the antiwear and low friction mechanisms of LP HS produced films.

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References

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Tribological properties of coating films synthesised by laser assisted plasma spraying

Abstract

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