| 摘要 |
<p>A method for protecting a synthesis gas generator burner heat shield includes coating the burner heat shield with an overlay alloy coating composition of the formula MCrA1Y wherein M is selected from the group consisting of iron, nickel, and cobalt. In a preferred embodiment, the coating includes from about 20-40 weight % Co, 5-35 weight % Cr, 5-10 weight % Ta, 0.8-10 weight % Al, 0.5-0.8 Y, 1-5 weight % Si and 5-15 weight % Al2O3.</p> |
