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Surface roughness effect in instrumented indentation: A simple contact depth model and its verification

Published online by Cambridge University Press:  03 March 2011

Ju-Young Kim ,
Jung-Jun Lee ,
Yun-Hee Lee ,
Jae-il Jang  and
Dongil Kwon
Ju-Young Kim
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
Jung-Jun Lee
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
Yun-Hee Lee
Affiliation:
Division of Metrology for Quality Life, Korea Research Institute of Standards and Science, Daejeon 305-340, Korea
Jae-il Jang*
Affiliation:
Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Korea
Dongil Kwon
Affiliation:
School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

Since in instrumented indentation the contact area is indirectly measured from the contact depth, the natural and unavoidable roughness of real surfaces can induce some errors in determining the contact area and thus in calculating hardness and Young's modulus. To alleviate these possible errors and evaluate mechanical properties more precisely, here a simple contact model that takes into account the surface roughness is proposed. A series of instrumented indentations were made on W and Ni samples whose surface roughness is intentionally controlled, and the results are discussed in terms of the proposed model.

Keywords

Elastic propertiesHardnessStrength
Type
Rapid Communications
Information
Journal of Materials Research , Volume 21 , Issue 12 , December 2006 , pp. 2975 - 2978
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1.Oliver, W.C., Pharr, G.M.: Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology. J. Mater. Res. 19, 3 (2004).CrossRefGoogle Scholar
2.Cheng, Y-T., Cheng, C-M.: Scaling, dimensional analysis, and indentation measurements. Mater. Sci. Eng., R 44, 91 (2004).CrossRefGoogle Scholar
3.Oliver, 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).CrossRefGoogle Scholar
4.Pullen, J., Williamson, J.B.P.: On the plastic contact of rough surfaces. Proc. R. Soc. London A 327, 159 (1972).Google Scholar
5.Bobji, M.S., Biswas, S.K., Pethica, J.B.: Effect of roughness on the measurement of nanohardness—a computer simulation study. Appl. Phys. Lett. 71, 1059 (1997).CrossRefGoogle Scholar
6.Lepienski, C.M., Pharr, G.M., Park, Y.J., Watkins, T.R., Misra, A., Zhang, X.: Factors limiting the measurement of residual stresses in thin films by nanoindentation. Thin Solid Films 447–448, 251 (2004).CrossRefGoogle Scholar
7.Donnelly, E., Baker, S.P., Boskey, A.L., van der Meulen, M.C.H.: Effects of surface roughness and maximum load on the mechanical properties of cancellous bone measured by nanoindentation. J. Biomed. Mater. Res. 77, 426 (2006).CrossRefGoogle ScholarPubMed
8.Zhang, T-Y., Xu, W-H., Zhao, M-H.: The role of plastic deformation of rough surfaces in the size-dependent hardness. Acta Mater. 52, 57 (2004).CrossRefGoogle Scholar
9.Zhao, Y., Maietta, D.M., Chang, L.: An asperity microcontact model incorporating the transition from elastic deformation to fully plastic flow. ASME J. Tribol. 122, 86 (2000).CrossRefGoogle Scholar
10.Bhushan, B., Gupta, B.K.: Handbook of Tribology: Materials, Coatings, and Surface Treatments (McGraw-Hill, New York, 1991).Google Scholar
11.Kim, J-Y., Lee, B-W., Read, D.T., Kwon, D.: Influence of tip bluntness on the size-dependent nanoindentation hardness. Scripta Mater. 52, 353 (2005).CrossRefGoogle Scholar
12.Johnson, K.L.: Contact Mechanics (Cambridge University Press, Cambridge, 1985).CrossRefGoogle Scholar
13.Walpole, R.E., Myers, R.H.: Probability and Statistics for Engineers and Scientists (Prentice Hall, Englewood Cliffs, NJ, 1993).Google Scholar
14.Pharr, G.M., Oliver, W.C., Brotzen, F.R.: On the generality of the relationship between contact stiffness, contact area, and elastic modulus during indentation. J. Mater. Res. 7, 613 (1992).CrossRefGoogle Scholar
15.Cheng, Y-T., Cheng, C-M.: Relationships between hardness, elastic modulus, and the work of indentation. Appl. Phys. Lett. 73, 614 (1998).CrossRefGoogle Scholar