High temperature tribological performance of CrAlYN/CrN nanoscale multilayer coatings deposited on ?-TiAl

• Main Authors: Walker, J.C (Author), Ross, I.M (Author), Reinhard, C. (Author), Rainforth, W.M (Author), Hovsepian, P.Eh (Author)
• Format: Article
• Language: English
• Published: 2009-06-15.
• Subjects: Article
• Online Access: Get fulltext

This paper details the effect of temperature on the frictional behaviour of highly novel CrAlYN/CrN multilayer coatings, deposited by High Power Impulse Magnetron Sputtering (HIPIMS) on a Titanium Aluminide alloy used as fan blade material in the aerospace and a turbo-charger wheel in the automotive industries. The work was the first to discover the high temperature oxide 'glaze' layer formation which occurred on CrN multilayer-type coatings at higher temperatures and has received significant attention in the literature because of this finding.