Hydrogen-Free Electrodeposition of Cadmium Coatings on High-Strength Steel for Corrosion Protection
Abstract
A raw method of electroplating cadmium onto high-strength steel has been developed at Argonne National Laboratory. The method has three aspects: (1) high-rate electrodeposition by pulsed currents in a flow cell that uses a flowing electrolyte; (2) an optimized pulse-nucleation step, followed by pulse or DC current growth of the electrodeposit; and (3) the use of aqueous fluoborate electrolyte. The electrolyte flow/pulse-plating method with aqueous fluoborate provides a unique approach for high-speed, hydrogen-free cadmium plating of steel in engineering shapes and sizes. A second method, which is based on electrodeposition from a molten salt, has also been investigated and shows promise as yet another hydrogen-free cadmium-plating technique. Keywords: Electrodeposition, Pulse current, High current density pulse-nucleation, Hydrogen-free cadmium, Flow call fluoborate, Molten salt.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 29, 1988
- Accession Number
- ADA197711
Entities
People
- H. Shimotake
- Rohan Varma
- T. Hoeller
Organizations
- Argonne National Laboratory