Electrodeposition of High-bright Hard Cr-C Layers on Steel Plate Cold-rolled Commercial from Trivalent Chromium/Organic Additives/Highly Concentrated Conductive Salt Aqueous Baths
نویسندگان
چکیده
To prepare Cr-C alloy layers having high current efficiency, Vickers hardness, and brightness in electrodeposition on commercial cold-rolled steel plate, this study examined additives put into baths. From a Cr2 （SO4）3/（NH4）2SO4 aqueous bath containing oxalic acid CrCl3/highly concentrated CaCl2/H3BO3 glycine, were formed. With the optimized compositions, produced with brightness. The highest efficiency of 31.8% was obtained 0.4 mol kg－1 glycine/0.75 CrCl3/4.68 CaCl2/0.49 H3BO3 bath. mainly comprised Cr3C2 Cr7C3 alloys.
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ژورنال
عنوان ژورنال: Journal of The Surface Finishing Society of Japan
سال: 2022
ISSN: ['1884-3409', '0915-1869']
DOI: https://doi.org/10.4139/sfj.73.365