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Size effect measurement and characterization in nanoindentation test

Published online by Cambridge University Press:  03 March 2011

Yueguang Wei ,
Xuezheng Wang  and
Manhong Zhao
Yueguang Wei*
Affiliation:
LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
Xuezheng Wang
Affiliation:
LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
Manhong Zhao
Affiliation:
LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
*
a)Address all correspondence to this author.e-mail: ywei@Lnm.imech.ac.cn
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Abstract

Nanoindentation test at scale of hundreds of nanometers has shown that measured hardness increases strongly with decreasing indent depth, which is frequently referred to as the size effect. Usually, the size effect is displayed in the hardness-depth curves. In this study, the size effect is characterized in both the load–displacement curves and the hardness–depth curves. The experimental measurements were performed for single-crystal copper specimen and for surface-nanocrystallized Al-alloy specimen. Moreover, the size effect was characterized using the dislocation density theory. To investigate effects of some environmental factors, such as the effect of surface roughness and the effect of indenter tip curvature, the specimen surface profile and the indentation imprint profile for single-crystal copper specimen were scanned and measured using the atomic force microscopy technique. Furthermore, the size effect was characterized and analyzed when the effect of the specimen surface roughness was considered.

Keywords

NanoindentationHardnessDislocations
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 1 , January 2004 , pp. 208 - 217
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1.Nix, W.D. and Gao, H., J. Mech. Phys. Solids 46 411 (1998).CrossRefGoogle Scholar
2.McElhaney, K.W., Vlassak, J.J. and Nix, W.D., J. Mater. Res. 13 1300 (1998).CrossRefGoogle Scholar
3.Begley, M. and Hutchinson, J.W., J. Mech. Phys. Solids 46 1029 (1998).CrossRefGoogle Scholar
4.Shu, J.Y. and Fleck, N.A., Int. J. Solids Struct. 35 1363 (1998).CrossRefGoogle Scholar
5.Poole, W.J., Ashby, M.F. and Fleck, N.A., Scr. Metall. Mater. 34 559 (1996).CrossRefGoogle Scholar
6.Atkinson, M., J. Mater. Res. 10 2908 (1995).CrossRefGoogle Scholar
7.Ma, Q. and Clarke, D.R., J. Mater. Res. 10 853 (1995).CrossRefGoogle Scholar
8.Stelmashenko, N.A., Walls, M.G., Brown, L.M. and Milman, Y.V., Acta Metall. Mater. 41 2855 (1993).CrossRefGoogle Scholar
9.Wei, Y., Wang, X., Wu, X. and Bai, Y., Science in China (Series A) 44 74 (2001).CrossRefGoogle Scholar
10.Wei, Y., Wang, X., Zhao, M., Cheng, C.M. and Bai, Y.L., Acta Mech. Sin. 19 59 (2003).CrossRefGoogle Scholar
11.Huang, Y., Xue, Z., Gao, H., Nix, W.D. and Xia, Z.C., J. Mater. Res. 15 1786 (2000).CrossRefGoogle Scholar
12.Xue, Z., Huang, Y., Hwang, K.C. and Li, M., J. Eng. Mater. Technol. 124 371 (2002).CrossRefGoogle Scholar
13.Swadener, J.G., George, E.P. and Pharr, G.M., J. Mech. Phys. Solids 50 681 (2002).CrossRefGoogle Scholar
14.Wei, Y. and Hutchinson, J.W., J. Mech. Phys. Solids 51 2037 2003, in pressCrossRefGoogle Scholar
15.Fleck, N.A. and Hutchinson, J.W., Adv. Appl. Mech. 33 295 (1997).CrossRefGoogle Scholar
16.Gao, H., Huang, Y., Nix, W.D. and Hutchinson, J.W., J. Mech. Phys. Solids 47 1239 (1999).CrossRefGoogle Scholar
17.Huang, Y., Gao, H., Nix, W.D. and Hutchinson, J.W., J. Mech. Phys. Solids 48 99 (2000).CrossRefGoogle Scholar
18.Iost, A. and Bigot, R., J. Mater. Sci. 31 3573 (1996).CrossRefGoogle Scholar
19.Oliver, W.C. and Pharr, G.M., J. Mater. Res. 7 1564 (1992).CrossRefGoogle Scholar
20.Lu, K. and Lu, J., J. Mater. Sci. Technol. 15 193 (1999).CrossRefGoogle Scholar
21.Cheng, Y.T. and Cheng, C.M., J. Mater. Res. 13 1059 (1998).CrossRefGoogle Scholar
22.Weiss, H.J., Phys. Status Solidi A 129 167 (1992).Google Scholar
23.Bobji, M.S. and Biswas, S.K., J. Mater. Res. 14 2259 (1999).CrossRefGoogle Scholar
24.Cheng, Y.T. and Cheng, C.M., Int. J. Solids Struct. 36 1231 (1999).CrossRefGoogle Scholar
25.Shaw, M.C. in Mechanical Behavior of Materials, edited by McClintock, F.A. and Argon, A.S. (Addison-Wesley, Reading, MA, 1966), p. 443.Google Scholar
26.Ashby, M.F., Philos. Mag. 21 399 (1970).CrossRefGoogle Scholar
27.Fleck, N.A., Muller, G.M., Ashby, M.F. and Hutchinson, J.W., Acta Metall. Mater. 42 475 (1994).CrossRefGoogle Scholar