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Superalloys are susceptible to damage from a variety of surface contaminants. They may also require special surface finishes for subsequent processing steps such as coating applications. This chapter describes some of the cleaning and finishing procedures that have been developed for superalloys and how they work. It discusses the effect of metallic contaminants, tarnish, oxide, and scale and how they can be detected and removed. It also discusses chemical and mechanical surface finishing techniques and where they are used, and presents several application examples.

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Cleaning and Finishing, Superalloys: A Technical Guide, 2nd ed., By Matthew J. Donachie, Stephen J. Donachie, ASM International, 2002, p 203–210,

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