Curated with aloha by
Ted Mooney, P.E. RET
The authoritative public forum
for Metal Finishing 1989-2025
-----
Extreme high temperature, low frictional coefficient coating
2001
I have been searching for a coating that has a very low coefficient of friction to eliminate scratches when a soft metal rubs on the surface. The surface preparation is ground polished and the challenge here is the working temperature which is a constant 450 to
500 deg C. I have tried TiN and CrN but they are not satisfying as they have a coefficient of 0.6 & 0.7. DLC or DLN failed too as they starts to lose weight at 400 deg C.
Would appreciate if anyone can help.
- Singapore
Most of the big coating companies in Europe have developed coatings for dry machining. I would suspect that these coatings would hold up under your conditions. I think there are at least two or three variations, including Ti-containing molybdenum disulfide, Cr-containing DLC, and a WC/C composite.
Jim Treglio - scwineryreview.com
PVD Consultant & Wine Lover
San Diego, California
2001
Q, A, or Comment on THIS thread -or- Start a NEW Thread