HVOF Cermet Coatings for High Horse Power Diesel Engines

970817

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
High Velocity Oxygen Fuel sprayed face coatings have shown great promise for piston rings used for High Power Density Diesel Engines. Various coatings have been tested on both wear test rigs and in engines. A highly dense HVOF cermet coating was developed with reasonable crack resistance during service. The HVOF coated piston rings wore three to six times lower than chrome plating. Cylinder liner (counter face) wear was found to be one to three times higher than chrome. However, engine oil consumption and blow by were within normal values.
The HVOF coating is considered to be an excellent replacement for chrome plating. The coating process is more environmentally friendly than the chrome plating process. Also, the coating has potentially lower or equivalent production cost when compared to chrome.
Meta TagsDetails
DOI
https://doi.org/10.4271/970817
Pages
11
Citation
Rastegar, F., "HVOF Cermet Coatings for High Horse Power Diesel Engines," SAE Technical Paper 970817, 1997, https://doi.org/10.4271/970817.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970817
Content Type
Technical Paper
Language
English