CHROMIUM-PLATED STAINLESS STEEL SHEET SUPERIOR IN CORROSION RESISTANCE AFTER HAVING BEEN WORKED

PROBLEM TO BE SOLVED: To provide a chromium-plated stainless steel sheet superior in corrosion resistance after having been worked. SOLUTION: The chromium-plated stainless steel sheet superior in corrosion resistance after having been worked has a corrosion prevention layer containing an outer layer...

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Bibliographic Details
Main Authors TERAOKA SHINICHI, SAKAMOTO TOSHIHARU
Format Patent
LanguageEnglish
Published 24.09.2010
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Summary:PROBLEM TO BE SOLVED: To provide a chromium-plated stainless steel sheet superior in corrosion resistance after having been worked. SOLUTION: The chromium-plated stainless steel sheet superior in corrosion resistance after having been worked has a corrosion prevention layer containing an outer layer of a hydration chromium oxide layer and an inner layer of a metallic chromium layer, on the surface of a substrate of a stainless steel sheet containing 10.5-30.0 mass% Cr. The corrosion prevention layer has a thickness of 0.01-0.10 μm, and preferably has such corrosion resistance that a cathode current density measured in a 3.5% NaCl solution at 30°C, which is in a state of being opened to the atmospheric air, is 2.5 μA/cm2or less in such a condition that the electric potential is -0.6 V with respect to a silver/silver chloride standard electrode. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20090172590