Rotating blade or stationary vane of a gas turbine

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0% Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0%, Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca and 0.5-1.5% Hf, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0% Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca and 0-0.5% of at least one element selected from the group consisting of Pt, Rh and Re, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0% Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0.5-1.5% Hf and 0.05-0.5% of at least one element selected from the group consisting of Pt, Rh and Re, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in one high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.7-14.3% Cr, 9.5-10.5% Co, 1.3-1.7% Mo, 4.1-4.5% W, 4.5-4.9% Ta, 3.8-4.2% Al, 2.5-2.9% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr and 1-100 ppm of Mg and/or Ca, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.7-14.3% Cr, 9.5-10.5% Co, 1.3-1.7% Mo, 4.1-4.5% W, 4.5-4.9% Ta, 3.8-4.2% Al, 2.5-2.9% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0-1.5% Hf and 0-0.5% of at least one element selected from the group consisting of Pt, Rh and Re, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 14.0% Cr, 10.0% Co, 1.5% Mo, 4.3% W, 4.7% Ta, 4.0% Al, 2.7% Ti, 0.09% C, 0.015% B, 0.02% Zr and 10 ppm of Mg, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0% Cr, 9.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0.05-0.5% Rh, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.1-15.0% Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.5-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0.5-1.5% Hf and 0.05-0.5% of Rh, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists essentially of 13.7-14.3% Cr, 9.5-10.5% Co, 1.3-1.7% Mo, 4.1-4.5% W, 4.5-4.9% Ta, 3.8-4.2% Al, 2.5-2.9% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0-1.5% Hf and 0-0.5% of at least one element selected from the group consisting of Pt, Rh and Re, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high strength of the nickel alloy through .gamma.' phase precipitation.

In a rotating blade or stationary vane of a gas turbine, wherein the improvement comprises the rotating blade or stationary vane being made of a nickel alloy that has high strength and high resistance to oxidation and corrosion at elevated temperatures and that consists of 13.1-15.0% Cr, 8.5-10.5% Co, 1.0-3.5% Mo, 3.5-4.5% W, 3.0-5.5% Ta, 3.5-4.5% Al, 2.2-3.2% Ti, 0.06-0.12% C, 0.005-0.025% B, 0.010-0.05% Zr, 1-100 ppm of Mg and/or Ca, 0-1.5% Hf and 0.05-0.2% of Re, with the remainder being Ni and incidental impurities, all percentages being on a weight basis, wherein said Ta contributes to an improvement in the high temperature strength of the nickel alloy through .gamma.' phase precipitation.