INFLUENCE OF SCRATCHING DEPTH ON THE MECHANICAL RESPONSE OF Zr80Cu20 FILM/Cu SURFACE BY MOLECULAR DYNAMICS

Anh-Vu Pham

Anh-Vu Pham Hung Yen University of Technology and Education

Keywords: Molecular dynamics, Deformation, Scratch depths

Abstract

The molecular dynamics method is used to study the coating, annealing, and scratching process on the Zr₈₀Cu₂₀ film/Cu(001) specimen. The influences of scratching depths on the force, deformation behavior, pile-up, and temperature of the Zr₈₀Cu₂₀/Cu specimen are discussed. The results show that the structure of the Zr₈₀Cu₂₀ alloy film improved after annealing. In addition, the scratch depth rises leading to the scratching forces and average friction coefficient of the Zr₈₀Cu₂₀ alloy film increasing.

References

N. Chen, H. Yang, A. Caron, P. Chen, Y. Lin, D. Louzguine-Luzgin, K. Yao, M. Esashi, A. Inoue, Glass-forming ability and thermoplastic formability of a Pd 40 Ni 40 Si 4 P 16 glassy alloy. J. Mater. Sci., 2011, 46, pp. 2091-2096.

J.P. Chu, J.S.C. Jang, J.C. Huang, H.S. Chou, Y. Yang, J.C. Ye, Y.C. Wang, J.W. Lee, F.X. Liu, P.K. Liaw, Y.C. Chen, C.M. Lee, C.L. Li, C. Rullyani, Thin film metallic glasses: Unique properties and potential applications. Thin Solid Films, 2012, 520, pp. 5097-5122.

A. Rauf, C.Y. Guo, Y.N. Fang, Z. Yu, B.A. Sun, T. Feng, Binary Cu-Zr thin film metallic glasses with tunable nanoscale structures and properties. J. Non-Cryst. Solids., 2018, 498, pp. 95-102.

M. Apreutesei, C. Esnouf, A. Billard, P. Steyer, Impact of local nanocrystallization on mechanical properties in the Zr-59at.% Cu metallic glass thin film. Mater. Des., 2016, 108, pp. 8-12.

J.Y. Zhang, Y. Liu, J. Chen, Y. Chen, G. Liu, X. Zhang, J. Sun, Mechanical properties of crystalline Cu/Zr and crystal–amorphous Cu/Cu–Zr multilayers. Mater. Sci. Eng. A., 2012, 552, pp. 392-398.

H. Dai, S. Li, G. Chen, Molecular dynamics simulation of subsurface damage mechanism during nanoscratching of single crystal silicon. P. I. Mech. Eng. J-J. Eng., 2019, 233, pp. 61-73.

C. Qiu, P. Zhu, F. Fang, D. Yuan, X. Shen, Study of nanoindentation behavior of amorphous alloy using molecular dynamics. Appl. Surf. Sci., 2014, 305, pp. 101-110.

X.-b. Jing, Z.-l. Liu, K.-l. Yao, Molecular dynamics investigation of deposition and annealing behaviors of Cu atoms onto Cu(001) substrate. Appl. Surf. Sci., 2012, 258, pp. 2771-2777.

K.E. Avila, S. Küchemann, I. Alabd Alhafez, H.M. Urbassek, Nanoscratching of metallic glasses – An atomistic study. Tribol. Int., 2019, 139, pp. 1-11.

P.-Z. Zhu, C. Qiu, F.-Z. Fang, D.-D. Yuan, X.-C. Shen, Molecular dynamics simulations of nanometric cutting mechanisms of amorphous alloy. Appl. Surf. Sci., 2014, 317, pp. 432-442.