Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1996-12-24
1999-09-14
Thibodeau, Paul
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428622, 428623, 428632, 428633, 428678, 428680, 428935, 428937, 427203, 427205, 427427, 427453, 205109, B21D 3900
Patent
active
059521104
ABSTRACT:
An abrasive coating suitable for forming an abrasive blade tip of a gas turbine engine. The coating is characterized as being capable of abrading a ceramic shroud at elevated temperatures during the in-service operation of the engine, and being resistant to oxidation and hot corrosion within the engine environment. The abrasive coating includes an MCrAl alloy layer, a ceramic layer overlying the alloy layer so as to form an outer surface of the abrasive coating, and abrasive particles dispersed between the alloy layer and the ceramic layer so that at least some of the abrasive particles are partially embedded in the alloy layer and also partially embedded in the ceramic layer. In addition, at least some of the abrasive particles project above the outer surface of the abrasive coating formed by the ceramic layer.
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Farr Howard J.
Schell Jerry D.
General Electric Company
Hess Andrew C.
Narciso David L.
Rickman Holly C.
Thibodeau Paul
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