Abstract
Heat resistance (1173-1573 K, 10-1000 h) has been examined for VKh-2K alloy together with the resistance to high-temperature sulfide and chloride corrosion (873-1273 K, 1-30 h). The alloy has high heat resistance up to 1473 K, but it falls substantially at higher temperatures. The alloy has higher resistance to sulfide corrosion than do high-chromium nickel alloys. In chloride melts, the alloy is subject to rapid corrosion. A two-layer YCrO3 – ZrO2 protective coating improves the resistance to oxidation and high-temperature corrosion in all media by more than two orders of magnitude.
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Oryshich, I.V., Poryadchenko, N.E. Methods of Protecting VKh-2K Alloy from High-Temperature Gas and Salt Corrosion. Powder Metallurgy and Metal Ceramics 43, 305–310 (2004). https://doi.org/10.1023/B:PMMC.0000042467.37871.ab
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DOI: https://doi.org/10.1023/B:PMMC.0000042467.37871.ab