The unavailability and cost of certain fuels commonly used by the U.S. Coast Guard sometimes promotes the use of alternative fuel choices to operate their gas turbine engines. This paper evaluates the effects of an alternative fuel on the Type II hot corrosion resistance of representative materials used in current gas turbine engines by the use of low-velocity burner rig (LVBR) tests. These materials consist of certain high-temperature nickel-based and cobalt-based alloys with an appropriate thermal barrier coating. Hot corrosion results using the alternative fuel were compared to LVBR hot corrosion tests using the preferred marine diesel fuel grade.

Subject
Hot corrosion, Test methods, Coatings, Materials, Gas turbines, Substrates, Nickel based alloys, Corrosion losses, Penetration, Aluminides, Carbon, Aluminum alloys, Alloys
Keywords:
Hot corrosion, fuel quality, gas turbine, high-temperature corrosion, carbon, aluminide coatings
Government work published by the Association for Materials Protection and Performance (AMPP) with permission of the author(s). Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2000
GOV
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