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Nanoindentation strain-rate jump tests for determining the local strain-rate sensitivity in nanocrystalline Ni and ultrafine-grained Al

Published online by Cambridge University Press:  02 June 2011

Verena Maier ,
Karsten Durst ,
Johannes Mueller ,
Björn Backes ,
Heinz Werner Höppel  and
Mathias Göken
Verena Maier
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
Karsten Durst*
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
Johannes Mueller
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
Björn Backes
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
Heinz Werner Höppel
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
Mathias Göken
Affiliation:
Department of Materials Science and Engineering, Institute 1: General Materials Properties, University Erlangen-Nuremberg, 91058 Erlangen, Germany
*
a)Address all correspondence to this author. e-mail: karsten.durst@ww.uni-erlangen.de
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Abstract

A nanoindentation strain-rate jump technique has been developed for determining the local strain-rate sensitivity (SRS) of nanocrystalline and ultrafine-grained (UFG) materials. The results of the new method are compared to conventional constant strain-rate nanoindentation experiments, macroscopic compression tests, and finite element modeling (FEM) simulations. The FEM simulations showed that nanoindentation tests should yield a similar SRS as uniaxial testing and generally a good agreement is found between nanoindentation strain-rate jump experiments and compression tests. However, a higher SRS is found in constant indentation strain-rate tests, which could be caused by the long indentation times required for tests at low indentation strain rates. The nanoindentation strain-rate jump technique thus offers the possibility to use single indentations for determining the SRS at low strain rates with strongly reduced testing times. For UFG-Al, extremely fine-grained regions around a bond layer exhibit a substantial higher SRS than bulk material.

Keywords

NanoindentationHardnessSimulation
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 11 , 14 June 2011 , pp. 1421 - 1430
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1.Gleiter, H.: Nanostructured materials: Basic concepts and microstructure. Acta Mater. 48, 1 (2000).Google Scholar
2.Valiev, R.Z., Alexandrov, I.V., Zhu, Y.T., and Lowe, T.C.: Paradoxon of strength and ductility in metals processed by SPD. J. Mater. Res. 17, 5 (2002).CrossRefGoogle Scholar
3.Kumar, K.S., Van Swygenhoven, H., and Suresh, S.: Mechanical behaviour of nanocrystalline metals and alloys. Acta Mater. 51, 5743 (2003).CrossRefGoogle Scholar
4.May, J., Höppel, H.W., and Göken, M.: Strain-rate sensitivity of ultra-fine grained aluminium produced by SPD. Scr. Mater. 53, 189 (2005).Google Scholar
5.Li, Y.J., Mueller, J., Höppel, H.W., Göken, M., and Blum, W.: Deformation kinetics of nanocrystalline nickel. Acta Mater. 55, 5708 (2007).Google Scholar
6.Vevecka-Piftaj, A., Böhner, A., May, J., Höppel, H.W., and Göken, M.: Strainrate sensitivity of ultrafine grained aluminium alloy AA6061. Mater. Sci. Forum 584–586, 741 (2008).Google Scholar
7.Dalla Torre, F., Van Swygenhoven, H., and Victoria, M.: Nanocrystalline electrodeposited Ni: Microstructure and tensile properties. Acta Mater. 50, 3957 (2002).Google Scholar
8.Höppel, H.W., May, J., and Göken, M.: Enhanced strength and ductility in ultrafine grained aluminium produced by ARB. Adv. Eng. Mater. 6, 781 (2004).Google Scholar
9.Vehoff, H., Lemaire, D., Schüler, K., Waschkies, T., and Yang, B.: The effect of grain size on strain-rate sensitivity and activation volume—from nano to ufg nickel. Int. J. Mat. Res. 98, 259 (2007).CrossRefGoogle Scholar
10.Oliver, W.C. and 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).Google Scholar
11.Mayo, M.J. and Nix, W.D.: A micro-indentation study of superplasticity in Pb, Sn and Sn-38wt%Pb. Acta Metall. 36, 2183 (1988).Google Scholar
12.Mayo, M.J., Siegel, R.W., Narayanasamy, A., and Nix, W.D.: Mechanical properties of nanophase TiO2 as determined by nanoindentation. J. Mater. Res. 5, 1073 (1990).CrossRefGoogle Scholar
13.Mayo, M.J., Siegel, R.W., Liao, Y.X., and Nix, W.D.: Nanoindentation on nanocrystal ZnO. J. Mater. Res. 7, 973 (1992).Google Scholar
14.Bower, A.F., Fleck, N.A., Needleman, A., and Ogbonna, N.: Indentation of power law creeping solid. Proc. R. Soc. London, Ser. A 441, 97 (1993).Google Scholar
15.Mulhearn, T.O. and Tabor, D.: Creep and hardness of metals: A physical study. J. Inst. Met. 89, 7 (1960).Google Scholar
16.Lucas, B.N. and Oliver, W.C.: Indentation power-law creep of high purity. Int. Metal. Mater. Trans. A 30A, 601 (1999).Google Scholar
17.Alkorta, J., Martinez-Esnaola, J.M., and Sevillano, J.G.: Critical examinations of strain-rate sensitivity measured by nanoindentation methods: Application to severely deformed niobium. Acta Mater. 56, 884 (2008).Google Scholar
18.Hart, E.W.: Theory of the tensile test. Acta Metall. 15, 351 (1967).Google Scholar
19.Lu, L., Schwaiger, R., Shan, Z.W., Dao, M., Lu, K., and Suresh, S.: Nano-sized twins induce high rate sensitivity of flow stress in pure copper. Acta Mater. 53, 2169 (2005).CrossRefGoogle Scholar
20.Nix, W.D. and Gao, H.: Indentation size effect of crystalline materials: A law for strain grading plasticity. J. Mech. Phys. Solids 46, 411 (1998).CrossRefGoogle Scholar
21.Durst, K., Backes, B., and Göken, M.: Indentation size effect of metallic materials: Correcting for the size of the plastic zone. Scr. Mater. 52, 1093 (2005).CrossRefGoogle Scholar
22.Backes, B., Durst, K., and Göken, M.: Determination of plastic properties of polycrystalline metallic materials by nanoindentation: Experiments and finite element simulations. Philos. Mag. 86, 5541 (2006).Google Scholar
23.Mirshams, R.A. and Parakala, P.: Nanoindentation of nanocrystalline Ni with geometrically different indenters. Mater. Sci. Eng., A 372, 252 (2004).Google Scholar
24.Natter, H. and Hempelmann, R.: Tailor-made nanomaterials designed by electrochemical methods. Electrochim. Acta 49, 51 (2003).Google Scholar
25.Böhner, A., Maier, V., Durst, K., Höppel, H.W., and Göken, M.: Macro- and nanomechanical properties and strain-rate sensitivity of accumulative roll bonded and equal channel angular pressed ultrafine-grained materials. Adv. Eng. Mater. 13, 251 (2011).CrossRefGoogle Scholar
26.Durst, K., Franke, O., Böhner, A., and Göken, M.: Indentation size effect in Ni-Fe solid-solutions. Acta Mater. 55, 6825 (2007).Google Scholar
27.Pharr, G.M., Strader, J., and Oliver, W.C.: Critical issues in making small-depth mechanical property measurements by nanoindentation with continuous stiffness measurement. J. Mater. Res. 24, 653 (2009).CrossRefGoogle Scholar
28.Mueller, J., Durst, K., Amberger, D., and Göken, M.: Local investigations of the mechanical properties of ufg metals by nanoindentation. Mater. Sci. Forum 503/504, 31 (2006).CrossRefGoogle Scholar
29.Blum, W. and Li, Y.J.: Flow stress and creep rate of nanocrystalline Ni. Scr. Mater. 57, 429 (2007).Google Scholar
30.Atkins, A.G. and Tabor, D.: Plastic indentation in metals with cones. J. Mech. Phys. Solids 13, 149 (1965).Google Scholar
31.Backes, B., Huang, Y.Y., Göken, M., and Durst, K.: The correlation between the internal material length scale and the microstructure in nanoindentation experiments and simulations using the conventional mechanism-based strain gradient plasticity theory. J. Mater. Res. 24, 1197 (2009).Google Scholar
32.Gu, C.D., Lian, J.S., Jiang, Q., and Zheng, W.T.: Experimental and modeling investigations on the strain-rate sensitivity of an electrodeposited 20 nm grain sized Ni. J. Phys. D: Appl. Phys. 40, 7440 (2007).Google Scholar
33.Schwaiger, R., Moser, B., Dao, M., Chollacoop, N., and Suresh, S.: Some critical experiments on the strain-rate sensitivity of nc nickel. Acta Mater. 51, 5159 (2003).Google Scholar
34.Shen, Y.F., Xue, W.Y., Wang, Y.D., Liu, Z.Y., and Zuo, L.: Mechanical properties of nanocrystalline nickel film deposited by pulse plating. J. Surf. Coat. 202, 5140 (2008).Google Scholar
35.Shen, X., Lian, J., Jiang, Z., and Jiang, Q.: High strength and high ductility of electrodeposited nanocrystalline Ni with broad grain size distribution. Mater. Sci. Eng., A 487, 410 (2008).Google Scholar
36.Dalla Torre, F., Spätig, P., Schäublin, R., and Victoria, M.: Deformation behavior and microstructure of nanocrystalline electrodeposited and high pressure torsioned nickel. Acta Mater. 53, 2337 (2005).Google Scholar
37.Wang, Y.M., Hamza, A.V., and Ma, E.: Temperature-dependent strain-rate sensitivity and activation volume in nanocrystalline Ni. Acta Mater. 54, 2715 (2006).Google Scholar
38.Höppel, H.W., May, J., Eisenlohr, P., and Göken, M.: Strain-rate sensitivity of ultrafine grained materials. Z. Metallk. 96, 6 (2005).Google Scholar
39.Meyers, M.A., Misha, A., and Benson, D.J.: Mechanical properties of nanocrystalline materials. Prog. Mater. Sci. 51, 427 (2006).CrossRefGoogle Scholar
40.Schweitzer, E., Durst, K., Amberger, D., and Göken, M.: The mechanical properties in the vicinity of grain boundaries in ultrafine-grained and polycrystalline materials studied by nanoindentation, in Nanoscale Materials and Modeling--Relations Among Processing, Microstructure and Mechanical Properties, edited by Anderson, P.M., Foecke, T., Misra, A., and Rudd, R.E. (Mater. Res. Soc. Symp. Proc. 821, Warrendale, PA, 2004), P4.9.1/N4.9.1.Google Scholar
41.Lee, S.H., Saito, Y., Sakai, T., and Utsunomiya, H.: Microstructure and mechanical properties of 6061 aluminum alloy processed by accumulative roll bonding. Mater. Sci. Eng., A 325, 228 (2002).Google Scholar
42.Lee, S.H., Saito, Y., Tsuji, N., Utsunomiya, H., and Sakai, T.: Role of shear strain in ultragrain refinement by accumulative roll-bonding (ARB) process. Scr. Mater. 46, 281 (2002).Google Scholar