Long-term testing has been conducted in a laboratory environment which promotes metal dusting. The results have confirmed the desirability of a nickel alloy matrix as well as certain alloying additions which promote formation of a protective oxide scale to prevent carbon ingress. A new Ni-Cr-Fe-A1 alloy has been shown to exhibit the greatest overall resistance to metal dusting, as confirmed by over 15,000 hours of testing in the laboratory in additional to several thousand hours of in-situ testing in syngas environments. General corrosion, mechanical and physical properties and weldability results for this new alloy are discussed.

Subject
Pits, Iron nickel chromium alloys, Materials, Materials performance, Nickel based alloys, Mass loss, Molybdenum alloys, Elongation, Metal dusting, Risk reduction, Aluminum alloys, Titanium alloys, Alloys
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2002
Association for Materials Protection and Performance (AMPP)
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