Coated steel member, coated steel sheet, and methods for manufacturing same
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United States of America Patent
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Apr 4, 2023
Grant Date -
Oct 13, 2022
app pub date -
Jun 21, 2022
filing date -
Feb 5, 2019
priority date (Note) -
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Abstract
The present invention has as its object the provision of a coated steel member and coated steel sheet excellent in hydrogen embrittlement resistance in a corrosive environment and methods for manufacturing the same. The coated steel member of the present invention is provided on its surface with an Al—Fe-based coating containing Cu and one or more of Mo, Ni, Mn, and Cr in a total by mass % of 0.12% or more by heating, cooling, and manufacturing a coated steel sheet having a layer containing Cu on its surface under predetermined conditions.
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