Study on the erosive wear of the gas-solid flow of compressor blade in an aero-turboshaft engine based on the Finnie model

Abstract

Abstract In this study, a Ti-6Al-4V alloy erosive wear test bench was designed and built. Particle velocities were tested using particle image velocimetry (PIV) at different air pressures. A Finnie wear model for the compressor blade materials was parameterized, and the gas–solid flow of a turboshaft engine pre-1.5 stage compressor blade was analyzed. The results showed that there were areas of wear concentrated on the pressure surface of the rotor blade and the suction and pressure surfaces of the stator blade. The maximum wear rate concentration appeared near the leading edge of the 80% span and near the leading and trailing edges of the 95% span on the rotor blade.