Re: 410 SS HVOF Application

Posted by john winne ( on 17:02:34 22/02/05

In Reply to:Re: 410 SS HVOF Application posted by Gordon England

Thanks Gordon.

All failures have been at the interface. We have been methodical about our surface preparation (pressure pot, 20-40 PSI, 4" stand-off, 45 angle, 54 grit). We have mimiced our competitors parameters with little success. Our competitor has pulled 14Ksi, Plasma with MasterBond EP15. Our microstructure looks better, but consistently fails pull testing. Micros indicate ~10% interface contamination.

What is the typical hardness values, Rc, for 410 HVOF?

Historically, has a plasma sprayed Stainless Steel pulled in excess of 10Ksi?

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