Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient
Patent
1999-06-07
2000-10-31
Zimmerman, John J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having composition, density, or hardness gradient
148516, 148537, 148425, 148428, 148240, 416241R, 416241B, 416232, 427250, 427256, 427269, 4273768, 4274192, 428630, 428632, 428637, 428642, 4284722, 428652, 428667, 428678, 428680, 428938, 428941, B32B 514, C23C 1600, F02C 100
Patent
active
061399760
ABSTRACT:
The invention relates to an article of manufacture comprising: a substrate composed of a superalloy containing chromium and a base element selected from the group consisting of iron, cobalt, and nickel; and an enrichment layer containing chromium and placed on the substrate. Therein, the enrichment layer comprises a continuous matrix composed of a gamma-phase solid solution of chromium in the base element. The invention also relates to the manufacture of such an article. The article may in particular be a gas turbine component.
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Czech Norbert
Halberstadt Knut
Kempster Adrian
Smith John
Greenberg Laurence A.
Koehler Robert R.
Lerner Herbert L.
Siemens Aktiengesellschaft
Stemer Werner H.
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