COMPRESSOR ABRADABLE MATERIAL SEAL WITH TAILORED WEAR RATIO AND DESIRABLE EROSION RESISTANCE

摘要

What is described is a wear resistant seal system that is adapted for resisting wear of a rotating part in a gas turbine engine (20) as it rotates against a stationary part in the engine (20). The system includes an axially rotable member including an abrasive tip (208) having a first tensile strength. The system also includes a stationary structure radially exterior and adjacent to the rotable member and including an abradable material (206). The abradable material (206) includes a matrix material (300) having a second tensile strength that, at least in a first temperature range, is lower than the first tensile strength and a filler material (302) interspersed with the matrix material (300).