Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1986-03-05
1987-11-03
Lechert, Jr., Stephen J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
75236, 75241, 75242, 419 14, 419 15, 419 17, 428666, B22F 300
Patent
active
047043369
ABSTRACT:
A solid particle erosion resistant coating includes angular titanium carbide particles uniformly dispersed through a high chromium iron matrix. In one form, the aggregate comprises, by weight, about 30-50% TiC, about 10-30% Cr, about 1.5-5% C and the balance essentially iron in the form of ferrite. The matrix also includes metallurgically identifiable amounts of high chromium content M.sub.7 C.sub.3 carbides therethrough. The coating does not exhibit austenitic or martensitic structure therethrough. A powder alloy consolidated body also includes a surface adjacent region having a similar TiC and high chromium iron matrix. Further, a method for obtaining the coating includes heating above the austenitization temperature of the matrix alloy and below the melting temperature of iron, and cooling the aggregate so as to attain iron in the form of ferrite in the matrix.
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General Electric Company
Lechert Jr. Stephen J.
Squillaro Jerome C.
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