There are a great variety of commercial nickel alloys mainly because nickel is able to dissolve a large amount of alloying elements while maintaining a single ductile austenitic phase. Nickel alloys are generally designed for and used in highly aggressive environments, for example when stainless steels may not perform well. Nickel alloys are generally resistant to pitting corrosion in chloride containing environments, but may be prone to crevice corrosion attack. Addition of chromium, molybdenum and tungsten increase the localized corrosion resistance of nickel alloys. A review on the resistance of nickel alloys to pitting corrosion includes specific environments such as the upstream oil & gas, chemical process industry and seawater.

Subject
Corrosion resistant alloys, Stainless alloys, Nickel based alloys, Molybdenum alloys, Nickel chromium molybdenum alloys, Repassivation potentials, Seawater, Crevice corrosion, Pitting, Corrosion resistance, Localized corrosion, Stainless steel, Alloys
Keywords:
nickel alloys, pitting corrosion, chloride, oil & gas, seawater, chemical process industry
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2016
Association for Materials Protection and Performance (AMPP)
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