Abstract
SYNOPSISExposure tests were carried out on plated specimens of zinc alloy fabricated in various ways, including normal pressure die-casting. It is concluded that variations in surface structure or the presence of minor defects on plated castings which are still commercially acceptable from the point of view of appearance do not significantly influence service performance. Accidental variations in chromium thickness have a much larger effect. In further exposure tests, the benefits of thicker, crack-free chromium were investigated. The tests are not complete, but already a clear improvement in resistance to blistering with thicker chromium is evident. The optimum minimum thickness of chromium may lie within the region 0·05 to 0·1 × 10−3 in, but it appears that even a modest increase from the conventional 0·01 × 10−3 in to about 0·03 × 10−3 in would add significantly to corrosion resistance. On all types of specimen, increasing the thickness of the bright nickel undercoat was beneficial. Although thicker ch...
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.
