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+0.5153.times.Nb % by weight+0.2647.times.Ta % by weight
(1)
MoEq-Mo % by weight+0.5217.times.W % by weight+0.5303.times.Ta % by
weight+1.0326.times.Nb % by weight (2)
Un superalloy nichel-basato contenendo 12.0 - 16.0% del peso del Cr, 4.0 - 9.0% a peso di il Co, 3.4 - 4.6% del peso di Al, 0.5 - 1.6% a peso di la N.B.:, 0.05 - 0.16% a peso di la C, 0.005 - 0.025% a peso di la B ed almeno uno degli importi del Ti, dell'AT e di Mo di Ti, dell'AT e del Mo è un calcolati dalle equazioni (1) e (2), in cui TiEq è 4.0 - 6.0 e MoEq è 5.0 - 8.0. TiEq=Ti % da weight+0.5153.times.Nb % da weight+0.2647.times.Ta % di peso (1) MoEq-Mo % da weight+0.5217.times.W % da weight+0.5303.times.Ta % da weight+1.0326.times.Nb % di peso (2)
