C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
C23G 5/00 (2006.01) C23C 10/60 (2006.01)
Patent
CA 2114413
21 The invention relates to the refurbishing of a corroded superalloy or heat resistant steel part, in particular a gas turbine component like a gas turbine blade, having a surface with products of corrosion. According to the in- vention, the surface is cleaned, in particular by mechanical or chemical means, and an aluminide coating is applied to the cleaned surface. Subsequently, the aluminide coating is re- moved, whereby all products of corrosion which have still remained in the part to be refurbished are removed as well.
Czech Norbert
Kempster Adrian
Aktiengesellschaft Siemens
Diffusion Alloys Ltd.
Fetherstonhaugh & Co.
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