Tribological Characteristics of Nanocrystalline Copper

Abstract:

Article Preview

In the present study, two sets of powder metallurgy copper samples, with grain sizes of 99 nm and 63 nm, respectively, were investigated under different tribological conditions. The wear behavior of these materials was studied through a pin-on-disc configuration using sliding velocities of 0.5, 1 and 2 m/s with normal loads of 10 and 30 N. The finer-grained copper was able to outperform (by between 4- to 16-fold) its coarser-grained counterpart under severe test conditions, but no advantage was observed when conditions were milder. Scanning electron microscopy revealed the dominant wear mechanisms to be oxidative wear under mild sliding, with a transition to adhesive wear with increases in sliding speed and normal load.

Info:

Edited by:

M. Gupta and Christina Y.H. Lim

Pages:

267-270

DOI:

10.4028/www.scientific.net/JMNM.23.267

Citation:

M. Shanthi et al., "Tribological Characteristics of Nanocrystalline Copper", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 267-270, 2005

Online since:

January 2005

Export:

Price:

$35.00

[1] C. Suryanaryana: Int. Mater. Rev. Vol. 40 (1995), p.41.

[2] H. Gleiter: Prog. Mater. Sci. Vol. 33 (1989), p.223.

[3] H. Gleiter: Acta Mater. Vol. 48 (2000), p.1.

[4] B.R. Murphy and T.H. Courtney: Nanostruct. Mat. Vol. 4 (1994), p.365.

[5] M. Takagi, H. Ohta, T. Imura, Y. Kawamura and A. Inoue: Scripta Mater. Vol. 44 (2001), p.2145.

[6] M.A. Thein and M. Gupta : Mater. Sci. Technol. Vol. 19 (2003), p.1473.

[7] T.J.F. Quinn: J. Appl,. Phys,. Vol. 13 (1962), p.33.

[8] F.H. Stott and G.C. Wood: Tribol. Int., Vol. 11 (1978), p.211.

[9] S.C. Lim and M.F. Ashby, Acta Metall., Vol. 35 (1987), p.1.

In order to see related information, you need to Login.