| 摘要 |
A nickel-based superalloy containing 12.0 to 16.0% by weight of Cr, 4.0 to 9.0% by weight of Co, 3.4 to 4.6% by weight of Al, 0.5 to 1.6% by weight of Nb, 0.05 to 0.16% by weight of C, 0.005 to 0.025% by weight of B, and at least one of Ti, Ta and Mo. Amounts of Ti, Ta and Mo are ones calculated by the equations (1) and (2), wherein TiEq is 4.0 to 6.0 and MoEq is 5.0 to 8.0. TiEq=Ti% by weight+0.5153xNb% by weight+0.2647xTa% by weight (1) MoEq=Mo% by weight+0.5217xxW% by weight+0.5303xTa% by weight+1.0326xNb% by weight. (2)
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