Abstract

A phosphate-permanganate surface treatment with additives Na2MoO4 and NaF was developed to improve the corrosion resistance and bond strength of magnesium AZ31. The phosphate coatings which have the magnesium phosphate, MgO, Mg (OH)2, MgF2 and a minor of Al2O3, Al(OH)3 Al0.35−0.55Si0.10−0.48P0.13−0.35O2.1−2.2 and, Al0.35Si0.48P0.18O2.2, and Al0.52P0.48O2.2 were formed on the surface of magnesium AZ31. A combination addition of the Na2MoO4 and NaF in the phosphate solution improves the corrosion resistance and bond strength of phosphated magnesium alloys. The optimal contents of NaF and Na2MoO4 are 0.8g/L and 0.5g/L, respectively.

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 call

Disclaimer: 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.