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Contact damage evolution in diamondlike carbon coatings on ductile substrates

  • Rajnish K. Singh (a1), M.T. Tilbrook (a1), Z.H. Xie (a1), A. Bendavid (a2), P.J. Martin (a2), P. Munroe (a1) and M. Hoffman (a1)...

Abstract

A diamondlike carbon (DLC) thin film was deposited onto a stainless steel substrate using a plasma-enhanced chemical vapor deposition (PECVD) process. Nanoindentation, coupled with focused-ion-beam (FIB) milling, was used to investigate contact-induced deformation and fracture in this coating system. Following initial elastic contact between the coating and the indenter and apparent plastic yield of the substrate, pop-ins were observed in the load–displacement curve, indicative of coating fracture. However, FIB cross-sectional images of indentations revealed the presence of ring, radial, and lateral cracks at loads much lower than the critical load for the first observed pop-ins. Finite element modeling was used, and the properties of the substrate and the film were calibrated by fitting the simulated load–displacement curves to experimental data. Then, based upon the experimental observations of damage evolution in this coating system, the stress distributions relevant to initiate ring, radial, and lateral cracks in the coating were ascertained. Furthermore, the effects of substrate yield stress and coating residual stress on the formation of these cracks were investigated.

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Corresponding author

a)Address all correspondence to this author. e-mail: Rajnish.Singh@gmail.com

References

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1Abraham, T.: Diamond, Diamond-like and CBN Films and Coated Products: Technology Analysis BCC Inc. Norwalk, CT 2002
2Xu, Z.H.Rowcliffe, D.: Nanoindentation on diamond-like carbon and alumina coatings. Surf. Coat. Technol. 161, 44 2002
3Poliakov, V.P., Siqueira, C.J., Veiga, W., Hummelgen, I.A., Lepienski, C.M., Kirpilenko, G.Dechandt, S.T.: Physical and tribological properties of hard amorphous DLC films deposited on different substrates. Diamond Relat. Mater. 13, 1511 2004
4Abdul-Baqi, A.van der Giessen, E.: Delamination of a strong film from a ductile substrate during indentation unloading. J. Mater. Res. 16, 1396 2001
5Michler, J., Tobler, M.Blanks, E.: Thermal annealing behavior of alloyed DLC films on steel: Determination and modelling of mechanical properties. Diamond Relat. Mater. 8, 510 1999
6Weppelmann, E.Swain, M.V.: Investigation of the stresses and stress intensity factors responsible for fracture of thin protective films during ultra-micro indentation tests with spherical indenters. Thin Solid Films 286, 111 1996
7Thomsen, N.B., Fischer-Cripps, A.C.Swain, M.V.: Crack formation mechanisms during micro and macro indentation of diamond-like carbon coatings on elastic–plastic substrates. Thin Solid Films 332, 180 1998
8Xie, Z-H., Hoffman, M., Moon, R.J., Munroe, P.R.Cheng, Y.B.: Subsurface indentation damage and mechanical characterization of α-sialon ceramics. J. Am. Ceram. Soc. 87, 2114 2004
9Bhowmick, S., Xie, Z-H., Hoffman, M., Jayaram, V.Biswas, S.K.: Nature of contact deformation of TiN films on steel. J. Mater. Res. 19, 2616 2004
10Xie, Z-H., Singh, R., Bendavid, A., Martin, P.J., Munroe, P.R.Hoffman, M.: Contact damage evolution in a diamond-like carbon (DLC) coating on a stainless steel substrate. Thin Solid Films 515, 3196 2007
11Begley, M.R., Evans, A.G.Hutchinson, J.W.: Spherical impression of thin elastic films on elastic–plastic substrates. Int. J. Solids Struct. 36, 2773 1999
12Lawn, B.R., Deng, Y.Thompson, V.P.: Use of contact testing in the characterization and design of all-ceramic crownlike layer structures: A review. J. Prosthet. Dent. 86, 495 2001
13Lawn, B.R.: Fracture and deformation in brittle solids: A perspective on the issue of scale. J. Mater. Res. 19, 22 2004
14Suresh, S.Giannakopoulos, A.E.: A new method for estimating residual stresses by instrumented sharp indentation. Acta Mater. 46, 5755 1998
15Mingwu, B., Koji, K., Noritsugu, U.Yoshihiko, M.: Nanoindentation and FEM study of the effect of internal stress on micro/nano mechanical property of thin CNx films. Thin Solid Films 377–378, 138 2000
16Litteken, C.S., Strohband, S.Dauskardt, R.H.: Residual stress effects on plastic deformation and interfacial fracture in thin-film structures. Acta Mater. 53, 1955 2005
17Grill, A.: Plasma-deposited diamond like carbon and related materials. IBM J. Res. Dev. 43(1/2), 147 1999
18Oliver, W.C.Pharr, G.M.: An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J. Mater. Res. 7, 1564 1992
19Xie, Z-H., Munroe, P., Moon, R.J.Hoffman, M.: Characterization of surface contact-induced fracture in ceramics using a focused ion beam miller. Wear 255, 651 2003
20Ronkainen, H., Varjus, S.Holmberg, K.: Friction and wear properties in dry, water- and oil-lubricated DLC against alumina and DLC against steel contacts. Wear 222, 120 1998
21Pelletier, H., Krier, J., Cornet, A.Mille, P.: Limits of using bilinear stress–strain curve for finite element modelling of nanoindentation response on bulk materials. Thin Solid Films 379, 147 2000
22Cho, S.J., Lee, K.R., Eun, K.Y., Hahn, J.H.Ko, D.H.: Finite-element modelling of the stresses and fracture during the indentation of hard elastic films on elastic-plastic aluminium substrates. Thin Solid Films 355/356, 303 1999
23Chen, S., Baughn, T.V., Yao, Z.J.Goldsmith, C.L.: A new in situ residual stress measurement method for a MEMS thin fixed-fixed beam structure. J. Microelectromech. Syst. 11, 309 2002
24Li, X.Bhushan, B.: Nanomechanical characterization of solid surfaces and thin films. Int. Mater. Rev. 48, 125 2003
25MatWeb—The Online Materials Information Resource, http://www.matweb.com.
26Johnson, K.L.: Contact Mechanics Cambridge Press New York 1985
27Hainsworth, S.V.Soh, W.C.: The effect of the substrate on the mechanical properties of TiN coatings. Surf. Coat. Technol. 163–164, 513 2003
28Lee, K.S., Wuttiphan, S., Hu, X-Z., Lee, S.Lawn, R.B.: Contact-induced transverse fractures in brittle layers on soft substrates: A study on silicon nitride bilayers. J. Am. Ceram. Soc. 81, 571 1998
29Abdul-Baqi, A.van der Giessen, E.: Numerical analysis of indentation-induced cracking of brittle coatings on ductile substrates. Int. J. Solids Struct. 39, 1427 2002
30Peng, X.L.Clyne, T.W.: Residual stress and debonding of DLC films on metallic substrates. Diamond Relat. Mater. 7, 944 1998
31Vanimisetti, S.K.Narasimhan, R.: A numerical analysis of flexure induced cylindrical cracks during indentation of thin hard films on soft substrates. Thin Solid Films 515 3277 2007

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