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Femtosecond laser surface texturing of a nickel-based superalloy

This is the first reported study of the surface machining characteristics of nickel-based superalloys with femtosecond lasers. These materials are important high temperature alloys used in the aero-engine industry. The research examined the material removal characteristics and determined the surface textures subsequently produced. In particular it confirmed that a high power density regime created a porous surface. This paper is significant in that it looks at an important engineering alloy rather than pure metals, with the aim of identifying the potential for surface texturing of high temperature engine components.