Chapter 9: Hot Corrosion in Gas Turbines
This chapter examines the hot corrosion resistance of various nickel- and cobalt-base alloys in gas turbines susceptible to high-temperature (Type I) and low-temperature (Type II) hot corrosion. Type I hot corrosion is typically characterized by a thick, porous layer of oxides with the underlying alloy matrix depleted in chromium, followed (below) by internal chromium-rich sulfides. Type II hot corrosion is characterized by pitting with little or no internal attack underneath. As the chapter explains, chromium additions make alloys more resistant to all types of hot corrosion attacks.
Hot Corrosion in Gas Turbines, High-Temperature Corrosion and Materials Applications, By George Y. Lai, ASM International, 2007, p 249–258, https://doi.org/10.31399/asm.tb.htcma.t52080249
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