High-temperature strength member
AssigneeTocalo Co., Ltd.
InventorsMasakazu Okazaki, Yoshio Harada, Tatsuo Suidzu
Life of this patent
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Abstract
A high-temperature strength member comprises a substrate of Ni-based single crystal alloy or a Ni-based unidirectional solidified alloy and a coating of a B-containing alloy having a specified B content formed on the surface thereof by a spraying process or a vapor deposition process.
Claims8
A high-temperature strength member comprising a substrate of a Ni-based single crystal alloy or a Ni-based unidirectional solidified alloy and a coating of a B-containing alloy having a B content of 0.1-5.0 mass % formed on a surface thereof.
A high-temperature strength member comprising a substrate of a Ni-based single crystal alloy or a Ni-based unidirectional solidified alloy, a coating of a B-containing alloy having a B content of 0.1-5.0 mass % formed on a surface thereof as an undercoat, and a coating of an alloy comprising at least two elements selected from Co, Ni, Cr and Al and further added with at least one element selected from Y, Hf, Ta, Cs, Ce, La, Th, W, Si, Pt and Mn as an overcoat formed on the undercoat.
A high-temperature strength member comprising a substrate of a Ni-based single crystal alloy or a Ni-based unidirectional solidified alloy, a coating of a B-containing alloy having a B content of 0.1-5.0 mass % formed on a surface thereof as an undercoat, a coating of an alloy comprising at least two elements selected from Co, Ni, Cr and Al and further added with at least one element selected from Y, Hf, Ta, Cs, Ce, La, Th, W, Si, Pt and Mn as an overcoat formed on the undercoat, and An Al diffused layer formed on a surface of the overcoat.
A high-temperature strength member comprising a substrate of a Ni-based single crystal alloy or a Ni-based unidirectional solidified alloy, a coating of a B-containing alloy having a B content of 0.1-5.0 mass % formed on a surface thereof as an undercoat, a coating of an alloy comprising at least two elements selected from Co, Ni, Cr and Al and further added with at least one element selected from Y, Hf, Ta, Cs, Ce, La, Th, W, Si, Pt and Mn as an overcoat formed on a surface of the undercoat, and a coating of a ZrO2 based ceramic including at least one oxide selected from Y2O3, CaO, MgO, Yb2O3, Sc2O3 and CeO2 as a topcoat formed on the overcoat.
Dependencies are inferred from the claim text.