Erosion Behavior in a Simulated Jet Engine Environment

Abstract

This paper presents erosion data relevant to gas turbine engines. Data were obtained in a material erosion facility for Ti 6-4 and INCO 718 alloys, for temperatures between ambient and 1300°F, particle velocities between 200 and 900 ft/s, and particle impingement angles between 20 and 90 deg. These data indicate that the erosion rate as a function of temperature is relatively constant for each material up to a temperature which is unique to the material, beyond which it increases rapidly. Further, the angle dependence of erosion rate remains relatively constant with increasing material temperature.