초록 ▼

A high temperature corrosion resistant alloy composition comprising, in addition to Ni, 0.1 to 12% by weight of Co, 10 to 30% by weight of Cr, 4 to 15% by weight of Al, 0.1 to 5% by weight of Y, and 0.5 to 10% by weight of Re. The high temperature corrosion resistant alloy composition has an excelle

A high temperature corrosion resistant alloy composition comprising, in addition to Ni, 0.1 to 12% by weight of Co, 10 to 30% by weight of Cr, 4 to 15% by weight of Al, 0.1 to 5% by weight of Y, and 0.5 to 10% by weight of Re. The high temperature corrosion resistant alloy composition has an excellent oxidation resistance and ductility and is suitable for use in a bonding layer of a thermal barrier coating material.

대표청구항 ▼

1. A high temperature corrosion resistant alloy composition, consisting of: 0.1 to 12% by weight of Co, 10 to 30% by weight of Cr, 4 to 15% by weight of Al, 0.1 to 5% by weight of Y, 0.5 to 10% by weight of Re, 0 to 0.7% by weight of Hf, 0 to 1.5% by weight of Si, and the balance Ni. 2. A high tempe

1. A high temperature corrosion resistant alloy composition, consisting of: 0.1 to 12% by weight of Co, 10 to 30% by weight of Cr, 4 to 15% by weight of Al, 0.1 to 5% by weight of Y, 0.5 to 10% by weight of Re, 0 to 0.7% by weight of Hf, 0 to 1.5% by weight of Si, and the balance Ni. 2. A high temperature corrosion resistant alloy composition as set forth in claim 1, wherein said alloy composition comprises 0.5 to 6% by weight of Re. 3. A high temperature corrosion resistant alloy composition as set forth in claim 2, wherein said alloy composition comprises 0.5 to 4% by weight of Re. 4. A high temperature corrosion resistant alloy composition as set forth in claim 1, wherein said alloy composition comprises 0.01 to 0.7% by weight of Hf and/or 0.01 to 1.5% by weight of Si. 5. A thermal barrier coating material, comprising:a heat-resistant alloy base material;a metal bonding layer disposed on said heat-resistant alloy base material, said metal bonding layer formed of a high temperature corrosion resistant alloy composition according to claim 1, anda ceramic layer disposed on said metal bonding layer. 6. A thermal barrier coating material as set forth in claim 5, further comprising:an oxidation scale layer comprising Al 2 O 3 as its main constituent formed on said metal bonding layer at a boundary between said metal bonding layer and said ceramic layer, andan oxidation denatured layer formed on said metal bonding layer at a position below said oxidation scale layer, a content of Al of said oxidation denatured layer being lowered due to the formation of said oxidation scale layer, whereinprecipitates including CrRe compounds as its main constituent are contained in said oxidation denatured layer. 7. A thermal barrier coating material as set forth in claim 5, whereinsaid metal bonding layer is made into a film by a method comprising a step of thermal spraying a powder of the high temperature corrosion resistant alloy composition. 8. A thermal barrier coating material as set forth in claim 5, whereinsaid metal bonding layer is made into a film by a method comprising a step of depositing of the high temperature corrosion resistant alloy composition using an electron beam physical deposition method. 9. A turbine member comprising: a thermal barrier coating material as set forth in claim 5. 10. A gas turbine comprising: a turbine member as set forth in claim 9.