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AssigneeNippon Steel Materials Co., Ltd.
InventorsToru Inaguma, Takayuki Kobayashi, Hiroaki Sakamoto
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The present invention provides a high Al-content steel sheet having an excellent workability and a method of production of the same at a low cost by mass production, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil, that is, a high Al-content steel sheet having an Al content of 6.5 mass % to 10 mass %, the high Al-content steel sheet characterized by having one or both of a {222} plane integration of an α-Fe crystal with respect to the surface of the steel sheet of 60% to 95% or a {200} plane integration of 0.01% to 15% and a method of production of the same, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil.
A high Al-content steel sheet having an Al content of 6.5 mass % to 10 mass %, said high Al-content steel sheet characterized by having one or both of a {222} plane integration of 60% to 95% or a {200} plane integration of 0.01% to 15% of the α-Fe crystal with respect to the surface of the steel sheet.
A high Al-content metal foil having an Al content of 6.5 mass % to 10 mass % and a steel sheet thickness of 0.005 mm to 0.1 mm, said high Al-content metal foil characterized by having one or both of a {222} plane integration of 60% to 95% or a {200} plane integration of 0.01% to 15% of the α-Fe crystal with respect to the surface of the steel sheet.
A method of production of high Al-content steel sheet excellent in workability characterized by comprising depositing Al or an Al alloy on at least one surface of a matrix steel sheet containing Al in an amount of 3.5 mass % to less than 6.5 mass % to obtain a laminate, imparting working strain to the laminate by cold working, then treating it by diffusion heat treatment.
Dependencies are inferred from the claim text.