Hi all,
I've been through loads of Parkerizing suppliers' websites and cannot find any reference to the (Vickers) hardness of manganese phosphate surface coating. Can anyone point me in the right direction?
[I'm comparing a few different coatings on a thread that specifies MnP for corrosion...
You could try www.sub-one.com - it's a pretty new process but if they can get it pinhole free you should have a reasonably long-lasting coating...
Andy
EdStainless - a-ha, the diffusion coefficient coupled with phase diagrams! I've started digging in those directions...
TVP - it is essentially a thin (~0.3-0.4 micron) Cr-interlayer on a Ti-alloy prior to the gradual phase-in of different metals through a PVD process. We've never experienced...
Hi all,
Does anybody know of any potential embrittlement issues of a chromium-titanium interface undergoing 2-3 hours heating at a temperature of about 450-550C? One of my colleagues mentioned offhand that he was told this can bring about a reduction in fatigue life of compressor blades...
Clyde
You could try tungsten disulphide (WS2) coatings. It provides a very low coefficient of friction and works at low temperatures (it was originally developed by NASA for satellite use) - http://www.ws2.co.uk/home.htm for a UK supplier; http://www.brycoat.com/dry-film-ws2.html for s US...
TiN (PVD) is FDA approved and used in all sorts of medical applications such as knee implants, medical reamers etc. It is also used by racing teams as an anti-galling barrier for wheel nuts etc.
As it is a basic coating provided by pretty much any coatings provider, you will find it cheap in...
