This work examines the corrosion behavior of cobalt and nickel base coatings produced by APS and HVOF spraying. Laser fusing and sealing are also assessed for comparison as are the corrosion properties of tungsten carbide, chromium carbide, and chromium oxide. All coatings and processes are analyzed by cyclic polarization testing and optical and scanning electron microscopy. Test results are presented and discussed along with the relative merits of each process.

atmospheric plasma spraying, cobalt base coatings, corrosion properties, high-velocity oxyfuel spraying, laser remelting, nickel base coatings, sealing
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Copyright © 2013 ASM International. All rights reserved.
2013
ASM International
Topics
Cobalt-base corrosion-resistant alloys Corrosion-resistant nickel alloys High-velocity oxyfuel spray coating Plasma spray coating Corrosion performance testing
Issue Section:
Applications and Case Studies
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