| 摘要 |
Nickel-based alloys for powder metallurgy. The alloys according to the invention are characterised in that they contain, by weight, 10 to 16 % of chromium, up to 10 % of cobalt, 3 to 7 % of molybdenum, up to 4 % of tungsten, 3 to 5 % of aluminium, 1 to 2 % of titanium, 4 to 7 % of niobium, up to 0.03 % of carbon, up to 0.1 % of zirconium, up to 0.05 % of boron, up to 1 % of hafnium, the remainder being made up of nickel and the usual impurities and in that the atomic percentages of the elements aluminium, titanium and niobium are defined by the region ABCD in the single figure. These alloys are intended for gas turbine discs. <IMAGE>
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