Article having a superalloy substrate and an enrichment layer placed thereon, and methods of its manufacturing
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United States of America Patent
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Oct 31, 2000
Issued Date -
N/A
app pub date -
Jun 7, 1999
filing date -
Dec 6, 1996
priority date (Note) -
Expired
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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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