Diffuser with improved erosion resistance

摘要

A diffuser (22) for a centrifugal compressor (14) in a gas turbine engine (10), the diffuser (22) including a diffuser ring (24) having a series of bores (32) defined therethrough to receive and direct air exiting the compressor (14), each bore (32) being defined by a respective bore surface including a boride layer (42) protecting the bore surface from erosion damage.