| 摘要 |
<p>The coated device contains a coating for use with corrosive environments at high temperatures. The device has a bond coat consisting essentially of, by weight percent, 0 to 5 carbon, 20 to 40 chromium, 0 to 5 nickel, 0 to 5 iron, 2 to 25 total molybdenum plus tungsten, 0 to 3 silicon 0 to 3 boron and balance cobalt and essential impurities t provide sulfidation resistance at high temperatures. A zirconia-base ceramic coating covers the bond coat for heat resistance. Optionally, a boride or carbide coating covers the zirconia for additional resistance to erosion.</p> |
