A Diamond-Like Carbon Coating for Aluminum Alloy Piston/Bore Application General Motors Research and Development Center

Format:

Conference/Event

Author/Creator:

Qiu, Xiaohong, author.

Conference Name:

International Congress & Exposition (1996-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

This paper examines the potential use of diamond-like carbon (DLC) on aluminum alloy pistons of internal combustion engines. Our approach is to apply a DLC coating on the piston running against an aluminum-390 bore thus eliminating the iron liners in a standard piston/bore system. Experimental data, using a pin-on-disk tribometer under unlubricated test conditions, indicate that the performance of the DLC coating against aluminum 390 exhibits superior friction resistance compared to aluminum-390 against cast iron; the latter material couple representing the materials currently being used in production for the piston/bore application. Moreover, by thermally cycling the DLC coatings we show that improved friction and wear properties can he maintained to temperatures as high as 400°C

Notes:

Vendor supplied data

Publisher Number:

960014

Access Restriction:

Restricted for use by site license