Abstract
SummaryCrack-free chromium coatings have been proposed for use in gun barrels to increase service life by eliminating the spalling which can occur with conventional hard chromium coatings. In this investigation variables which affect the deposition of crack-free coatings by pulse plating and DC plating with an imposed AC ripple were studied. Microstructures and hardnesses were compared with low contractile (LC) and hard chromium plate. Pulse plated coatings (ca 800–900HV) consisted of an agglomeration of small grains interspersed with pores, the size and number depending on the plating conditions. AC ripple coatings were substantially softer (ca 650HV), and had a columnar herringbone type structure at 15% ripple which changed to a granulated structure at 20%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
