The Effect of Hard Coated Metals on the Thermo-Oxidative Stability of a Branched Perfluoropolyalklyether Lubricant (Preprint)

M-50 and carburized Pyrowear 675(registered) steel coupons deposited with commercially available physical vapor deposited (PVD) TiN, TiCN, TiAlCN, TiCrCN/TiB4C multilayer, electroless Ni (E-Ni) TiN, and E-Ni TiCN coatings were immersed in a branched perfluoropolyalklyether (PFPAE), Krytox AC(registe...

Full description

Saved in:
Bibliographic Details
Main Authors: Hellman, Patrick T, Zabinski, Jeffrey S, Gschwender, Lois J, Snyder, Carl E, Korenyi-Both, Andras L
Format: Report
Language:English
Subjects:
CORROSION RESISTANCE
HIGH TEMPERATURE
Lubricants and Hydraulic Fluids
METALS
OXIDATION
PE62102F
PFPAE(PERFLUOROPOLYALKYLETHERS)
Physical Chemistry
Properties of Metals and Alloys
SCANNING ELECTRON MICROSCOPY
SOLID LUBRICANTS
WUAFRLM06R1000
X RAY PHOTOELECTRON SPECTROSCOPY
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:M-50 and carburized Pyrowear 675(registered) steel coupons deposited with commercially available physical vapor deposited (PVD) TiN, TiCN, TiAlCN, TiCrCN/TiB4C multilayer, electroless Ni (E-Ni) TiN, and E-Ni TiCN coatings were immersed in a branched perfluoropolyalklyether (PFPAE), Krytox AC(registered), in an oxidative environment at temperatures ranging from 315 to 360 deg C for a duration of 24 hours and compared to uncoated coupons. Coated and uncoated Pyrowear 675(registered) coupons demonstrated superior corrosion resistance compared to coated and uncoated M-50, respectively. The coatings most resistant to chemical attack in the PFPAE fluid were TiCN, E-Ni TiN, and E-Ni TiCN. Prepared in collaboration with Tribologix, Springboro, OH. Published in the Journal of Synthetic Lubrication, v24, n1, p1-17, Dec 2006.