Refurbishing of corroded superalloy or heat resistant steel parts
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United States of America Patent
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Apr 17, 2001
Grant Date -
N/A
app pub date -
Jan 31, 1994
filing date -
Jul 29, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A corroded superalloy or heat resistant steel part, in particular a gas turbine component like a gas turbine blade, having a surface with products or corrosion is refurbished. The invention the surface is cleaned, in particular mechanically or chemically, and an aluminide coating is applied to the cleaned surface. Subsequently, the aluminide coating is removed, whereby all products of corrosion which have still remained in the part to be refurbished are removed as well.
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