| 摘要 |
<p>The invention relates to usage of a nickel-chromium-iron-aluminium alloy with (in wt.%) 12-28% chromium, 1.8-3.0% aluminium, 1.0-15% iron, 0.01-0.5% silicon 0.005-0.5% manganese, 0.01-0.20% yttrium, 0.02-0.60% titanium, 0.01-0.2% zirconium, 0.0002-0.05% magnesium, 0.0001-0.05% calcium, 0.03-0.11% carbon, 0.003-0.05% nitrogen, 0.0005-0.008% boron, 0.0001-0.010% oxygen, 0.001-0.030% phosphorus, max. 0.010% sulphur, max. 0.5% molybdenum, max. 0.5% tungsten, the remainder being nickel and the usual impurities introduced by the method, as an electrode material, wherein the following relationships must be satisfied: 0 < 7.7 C - x . a < 1.0 (2), where a = PN, if PN > 0 (3a), or a = 0, if PN <= 0 (3b), and x = (1.0 Ti + 1.06 Zr)/(0.251 Ti + 0.132 Zr) (3c), wherein PN = 0.251 Ti + 0.132 Zr - 0.857 N (4), and Ti, Zr, N, C are the concentrations of the respective elements in mass %.</p> |
