Replacement For Hard Chrome Plating
I am looking for an alternative coating to replace Hard Chrome on a piston head which slides in a stainless steel cylinder. I am considering Titanium Nitride. The steel cylinder has a hardness of approximately 42Rc.Tom Fritch
- Valencia, California, USA
Gee, Tom, since you work for the competition, I'd say it's an EXCELLENT idea! Simply marvelous! Oh, and make sure you select a cathodic arc process, as well, for better seal life! : )
(Gosh, I'm biting my tongue so hard here I can taste the blood...)
Seriously, chat with Kim Bodily or Dan Loveless at your Utah facility before you go too far. Good luck!Lee Gearhart
metallurgist - E. Aurora, New York
Hard chrome has much better oil retention and lower coefficient of friction. In what way is the hard chrome less than satisfactory?
Ted Mooney, P.E.
finishing.com - Pine Beach, New Jersey
Striving to live Aloha
Chrome Nitride may be a better choice. However since hard chrome is typically deposited much thicker than standard PVD CrN, you will want to consider how a thinner replacement may affect the application whenever replacing hard chrome with PVD coatings.Jeff Ostman
- Olten, SWITZERLAND