APS WC coating delamination
Hello all,
I am new to this forum and am in need of some help. I work for a company that uses the Northwest Mettech Axial III spray system to spray WC powder onto a thin steel substrate (as low as 0.015â€). We have run into some issues, namely poor porosity and delamination from the substrate and in the coating itself. We seem to have corrected our porosity issue by using a finer grain of powder, but that has only served to increase the amount of delamination we are seeing. Typically our coating needs to be anywhere from 0.005†to 0.012†thick. Is there anything short of purchasing an HVOF system we can do to reduce the amount of delamination?
Thanks in advance
Brian
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