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Sample Preparation of Worn Surfaces for EBSD Analysis

Abstract In the wake of an increasing number of flights in sandy conditions, the solid particle erosion of aircraft turbine components has become a critical issue. Since the Second World War, this type of wear has been investigated aiming at identifying measures to improve the life time and performance of aircraft turbine components [1]. Flights in environments containing small particles lead to a drastic reduction of the turbine performance due to the dulling of blades, the reduction of the profile depths, and increased tip clearance [2]. All of this is accompanied by increased maintenance costs [3]. Therefore, measures such as the coating of rotor blades and particle filters for the reduction of phenomena of erosion were introduced [3–4].