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Molecular Dynamics Simulation of Friction and Wear Behavior Between Carbon and Copper

탄소와 구리의 마찰 및 마모에 관한 분자 동역학 시뮬레이션

  • 김광섭 (한국과학기술원 기계공학과) ;
  • 강지훈 (한국과학기술원 기계공학과) ;
  • 김경웅 (한국과학기술원 기계공학과)
  • Published : 2004.04.01

Abstract

In this paper, friction and wear behaviors between monocrystalline, defect-free copper and carbon on the atomic scale are investigated by using 2-dimensional molecular dynamics simulation. It is assumed that all interatomic forces are given by Morse potential. The deformation of carbon is assumed to be neglected and vacuum condition is also assumed. Average friction and normal forces for various surface conditions, various scratch speeds and scratch depths are obtained from simulations. Changes of wear behaviors for various scratch speeds and surface conditions are investigated by observing snapshots in scratch process. The effects of surface conditions, scratch speeds, and scratch depths on the friction force, normal force, and friction coefficient are also investigated.

Keywords

References

  1. J. Belak and I. F. Stowers, 'A molecular dynamics model of the orthogonal cutting process,' PIVC. ASPE Annu. Conf, pp.76-79, 1990
  2. S. Shimada et ai., 'Molecular dynamics analysis as compared with experimental results of micromachin-ing,' Ann. CIRp, Vol. 41, pp. 117-120, 1992
  3. S. Shimada et al., 'Feasibility study on ultimate accuracy in microcutting using molecular dynamics simulation,' Ann. CIRP, Vol. 42, pp. 91-94, 1993
  4. R. Komanduri, N. Chandrasekaran and L. M. Raff, 'MD simulation of indentation and scratching of sin-gle crystal aluminum,' Wear, Vol. 240, pp. 113-143, 2000
  5. R. Komanduri, N. Chandrasekaran and L. M. Raff, 'MD simulation of nanometric cutting of single crys-tal aluminum-effect of crystal orientation and directionof cutting,' Wear, Vol. 242, pp. 60-88, 2000
  6. R. Komanduri, N. Chandrasekaran and L. M. Raff, 'Molecular dynamics simulation of the nanometric cutting of silicon,' Phil. Mag. B, Vol. 81(12), pp.1989-2019, 2001
  7. D.E. Kim and N.P. Suh, 'Molecular dynamics inves-tigation of two-dimensional atomic-scale friction,' J. Tribology, Vol. 116, pp. 225-231, 1994
  8. J. Shimizu, H. Eda, M. Yoritsune and E. Ohmura, 'Molecular dynamics simulation of friction on the atomic scale,' Nanotechnology, Vol. 9, pp. 118-123,1998
  9. R. Komanduri, N. Chandrasekaran and L. M. Raff, 'Molecular dynamics simulation of atomic-scale fric-tion,' Phys. Rev. B, Vol. 61(20), pp. 14007-14019,2000
  10. L.C. Zhang and H. Tanaka, 'Towards a deeper understanding of wear and friction on the atomic scale - a molecular dynamics analysis,' Wear, vol. 211 pp. 44-53 1997
  11. L.A. Girifalco and V.G. Weizer, 'Application of the Morse potential function to cubic metals,' Phys. Rev., Vol. 114(3), pp. 687-690, 1958
  12. R. Komanduri, N. Chandrasekaran and L. M. Raff, 'Molecular dynamics (MD) simulation of uniaxial tension of some single-crystal cubic metals at nanolevel,' Int. J. Mech. Sci., Vol. 43(10), pp. 2237-2260, 2001
  13. K. Maekawa and A. Itoh, 'Friction and tool wear in nano-scale machining-a molecular dynamics approach,' Wear, Vol. 188, pp. 115-122, 1995
  14. M.P. Allen and D.J. Tildesley, 'Computer simulation of liquids,' Oxford University Press (New York), p. 80, 1987