The effects of sliding velocity and sliding time on nanocrystalline tribolayer development and properties in copper

Emge, A and Karthikeyan, S and Rigney, DA (2009) The effects of sliding velocity and sliding time on nanocrystalline tribolayer development and properties in copper. In: 17th International Conference on Wear of Materials, APR 19-23, 2009, Las Vegas, pp. 562-567.

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Abstract

The growth of the nanocrystalline tribolayer produced in oxygen free high conductivity copper after sliding against 440C stainless steel was studied. Tests were conducted on a pin-on-disk tribometer at sliding velocities of 0.05 and 1.0 m/s and sliding times of 0.1 to 10,000 s. Subsurface deformation and the growth of the tribolayer as a function of time were studied with the use of transmission electron microscopy and ion induced secondary electron microscopy. A continuous nanocrystalline tribolayer was produced after as little as 10 s of sliding at both sliding velocities. The tribolayer produced by sliding at 0.05 m/s continued to grow at sliding times up to 10,000 s and developed texture. Dynamic recrystallization of the tribolayer at a sliding velocity of 1.0 m/s inhibited the growth of a continuous anocrystalline tribolayer.

Item Type:	Conference Paper
Publication:	WEAR
Publisher:	Elsevier science
Additional Information:	Copyright for this article belongs to Elsevier science.
Keywords:	Copper; Sliding velocity; Microstructure; Tribolayer; Nanocrystalline.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	15 Jul 2009 06:59
Last Modified:	16 Nov 2012 06:40
URI:	http://eprints.iisc.ac.in/id/eprint/21460

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