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An energy analysis of nanovoid nucleation in nanocrystalline materials with grain boundary sliding accommodations

Published online by Cambridge University Press:  15 January 2014

Lu Wang ,
Jianqiu Zhou ,
Shu Zhang ,
Yingguang Liu ,
Hongxi Liu ,
Ying Wang  and
Shuhong Dong
Lu Wang
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China
Jianqiu Zhou*
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China; and Department of Mechanical Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430070, China
Shu Zhang
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China
Yingguang Liu
Affiliation:
Department of Energy and Power Engineering, North China Electric Power University, Baoding, Hebei 071003, China
Hongxi Liu
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China
Ying Wang
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China
Shuhong Dong
Affiliation:
Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China
*
a)Address all correspondence to this author. e-mail: zhouj@njut.edu.cn
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Abstract

A theoretical model of nanovoid nucleation at triple junctions in nanocrystalline materials is developed in this article. The sliding of grain boundaries (GBs) meeting at triple junctions, which can be attributed to the gliding of GB dislocations (GBDs), provides the driving force for nanovoid nucleation. The GB sliding is accommodated by the emission of partial dislocations from GBs as well as GB diffusion. The corresponding energy characteristics of the pile-ups of GBDs, the emission of partial dislocations from the GBs, and GB diffusion are calculated, respectively. Furthermore, an energy balance method to calculate the nucleation of nanovoid at triple junctions is studied. The analysis demonstrates that the nucleation of the triple junction nanovoid depends mainly on the applied stress, the GB length (length of the pile-up), the GB structures, and the GB sliding accommodations.

Keywords

void nucleationnanocrystalline materialsdislocationsgrain boundary sliding
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 2 , 28 January 2014 , pp. 277 - 287
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

Nieman, G.W., Weertman, J.R., and Siegel, R.W.: Mechanical behavior of nanocrystalline Cu and Pd. J. Mater. Res. 6, 1012 (1991).Google Scholar
Kumar, K.S., Suresh, S., and Van Swygenhoven, H.: Mechanical behavior of nanocrystalline metals and alloys. Acta Mater. 51, 5743 (2003).CrossRefGoogle Scholar
Meyers, M.A., Mishra, A., and Benson, D.J.: Mechanical properties of nanostructured materials. Prog. Mater. Sci. 51, 427 (2006).Google Scholar
Benkassem, S., Capolungo, L., and Cherkaoui, M.: Mechanical properties and multi-scale modeling of nanocrystalline materials. Acta Mater. 55, 3563 (2007).CrossRefGoogle Scholar
Capolungo, L., Cherkaoui, M., and Qu, J.: On the elastic–viscoplastic behavior of nanocrystalline materials. Int. J. Plast. 23, 561 (2007).Google Scholar
Dao, M., Lu, L., Asaro, R.J., De Hosson, J.T.M., and Ma, E.: Toward a quantitative understanding of mechanical behavior of nanocrystalline metals. Acta Mater. 55, 4041 (2007).Google Scholar
Koch, C.C.: Structural nanocrystalline materials: An overview. J. Mater. Sci. 42, 1403 (2007).CrossRefGoogle Scholar
Ovid’ko, I.A.: Review on fracture processes in nanocrystalline materials. J. Mater. Sci. 42, 1694 (2007).CrossRefGoogle Scholar
Wolf, D., Yamakov, V., Phillpot, S.R., Mukherjee, A.K., and Gleiter, H.: Deformation of nanocrystalline materials by molecular-dynamics simulation: Relationship to experiments? Acta Mater. 53, 1 (2005).Google Scholar
Inoue, J., Fujii, Y., and Koseki, T.: Void formation in nanocrystalline Cu film during uniaxial relaxation test. Acta Mater. 56, 4921 (2008).Google Scholar
Nazarov, A.A., Romanov, A.E., and Valiev, R.Z.: On the structure, stress fields and energy of nonequilibrium grain boundaries. Acta Metall. Mater. 41, 1033 (1993).CrossRefGoogle Scholar
Sheikh-Ali, A.D.: On the contribution of extrinsic grain boundary dislocations to grain boundary sliding in bicrystals. Acta Mater. 45, 3109 (1997).CrossRefGoogle Scholar
Bollman, W.: On the geometry of grain and phase boundaries I. General theory. Philos. Mag. 16, 363 (1967).Google Scholar
Gates, R.S.: The role of grain boundary dislocations in grain boundary sliding. Acta Metall. Mater. 21, 855 (1973).Google Scholar
Kumar, K.S., Suresh, S., Chisholm, M.F., Horton, J.A., and Wang, P.: Deformation of electrodeposited nanocrystalline nickel. Acta Mater. 51, 387 (2003).Google Scholar
Han, B.Q., Lavernia, E.J., and Mohamed, F.A.: Mechanical properties of nanostructured materials. Rev. Adv. Mater. Sci. 9, 1 (2005).Google Scholar
Querin, J., Schneider, J., and Horstemeyer, M.F.: Analysis of micro void formation at grain boundary triple points in monotonically strained AA6022-T43 sheet metal. Mater. Sci. Eng., A 463, 101 (2007).CrossRefGoogle Scholar
Ovid'ko, I.A. and Sheinerman, A.G.: Triple junction nanocracks in deformed nanocrystalline materials. Acta Mater. 52, 1201 (2004).CrossRefGoogle Scholar
Ovid’ko, I.A. and Sheinerman, A.G.: Suppression of nanocrack generation in nanocrystalline materials under superplastic deformation. Acta Mater. 53, 1347 (2005).Google Scholar
Ovid’ko, I.A. and Sheinerman, A.G.: Enhanced ductility of nanomaterials through optimization of grain boundary sliding and diffusion processes. Acta Mater. 57, 2217 (2009).Google Scholar
Schäfer, J. and Albe, K.: Competing deformation mechanisms in nanocrystalline metals and alloys: Coupled motion versus grain boundary sliding. Acta Mater. 60, 6076 (2012).Google Scholar
Kim, H.S., Estrin, Y., and Bush, M.B.: Plastic deformation behaviour of fine-grained materials. Acta Mater. 48, 493 (2000).Google Scholar
Yamakov, V., Wolf, D., Phillpot, S.R., and Gleiter, H.: Grain-boundary diffusion creep in nanocrystalline palladium by molecular-dynamics simulation. Acta Mater. 50, 61 (2002).Google Scholar
Kolobov, Y.R. and Ratochka, I.V.: Grain boundary diffusion and plasticity/superplasticity of polycrystalline and nanostructured metals and alloys. Mater. Sci. Eng., A 411, 468 (2005).Google Scholar
Fedorov, A.A., Gutkin, M.Y., and Ovid’ko, I.A.: Triple junction diffusion and plastic flow in fine-grained materials. Scr. Mater. 47, 51 (2002).Google Scholar
Yang, W. and Yang, F.: Kinetics and size effect of grain rotations in nanocrystals with rounded triple junctions. Scr. Mater. 61, 919 (2009).Google Scholar
Murayama, M., Howe, J.M., Hidaka, H., and Takaki, S.: Atomic-level observation of disclination dipoles in mechanically milled, nanocrystalline Fe. Science 295, 2433 (2002).Google Scholar
Ovid’ko, I.A.: Deformation of nanostructures. Science 295, 2386 (2002).CrossRefGoogle ScholarPubMed
Van Swygenhoven, H., Derlet, P.M., and Hasnaoui, A.: Atomic mechanism for dislocation emission from nanosized grain boundaries. Phys. Rev. B 66, 024101 (2002).Google Scholar
Liao, X.Z., Zhou, F., Lavernia, E.J., Srinivasan, S.G., Baskes, M.I., He, D.W., and Zhu, Y.T.: Deformation mechanism in nanocrystalline Al: Partial dislocation slip. Appl. Phys. Lett. 83, 632 (2003).CrossRefGoogle Scholar
Zelin, M.G. and Mukherjee, A.K.: Geometrical aspects of superplastic flow. Mater. Sci. Eng., A 208, 210 (1996).CrossRefGoogle Scholar
Ovid’ko, I.A. and Sheinerman, A.G.: Grain-boundary dislocations and enhanced diffusion in nanocrystalline bulk materials and films. Philos. Mag. 83, 1551 (2003).CrossRefGoogle Scholar
Wu, M.S. and Niu, J.: A theoretical analysis of crack nucleation due to grain boundary dislocation pile-ups in a random ice microstructure. Philos. Mag. A 71, 831 (1995).Google Scholar
Wu, M.S.: Crack nucleation due to dislocation pile-ups at I-, U- and amorphized triple lines. Mech. Mater. 25, 215 (1997).CrossRefGoogle Scholar
Raj, R.: Nucleation of cavities at second phase particles in grain boundaries. Acta Metall. 26, 995 (1978).Google Scholar
Bobylev, S.V., Gutkin, M.Y., and Ovid’ko, I.A.: Transformations of grain boundaries in deformed nanocrystalline materials. Acta Mater. 52, 3793 (2004).Google Scholar
Hugo, R.C., Kung, H., Weertman, J.R., Mitra, R., Knapp, J.A., and Follstaedt, D.M.: In-situ TEM tensile testing of DC magnetron sputtered and pulsed laser deposited Ni thin films. Acta Mater. 51, 1937 (2003).CrossRefGoogle Scholar
Chokshi, A.H. and Mukherjee, A.K.: An analysis of cavity nucleation in superplasticity. Acta Metall. 37, 3007 (1989).Google Scholar
Fleck, R.G., Taplin, D.M.R., and Beevers, D.J.: The prediction of creep fracture from intergranular damage measurements in a copper alloy. Acta Metall. 23, 415 (1975).CrossRefGoogle Scholar
Foiles, S.M. and Hoyt, J.J.: Computation of grain boundary stiffness and mobility from boundary fluctuations. Acta Mater. 54, 3351 (2006).Google Scholar
Chokshi, A.H.: Cavity nucleation and growth in superplasticity. Mater. Sci. Eng., A 410, 95 (2005).CrossRefGoogle Scholar
Fedorov, A.A., Gutkin, M.Y., and Ovid’ko, I.A.: Transformations of grain boundary dislocation pile-ups in nano- and polycrystalline materials. Acta Mater. 51, 887 (2003).CrossRefGoogle Scholar
Milligan, W.W., Hackney, S.A., Ke, M., and Aifantis, E.C.: In situ studies of deformation and fracture in nanophase materials. Nanostruct. Mater. 2, 267 (1993).Google Scholar
Ke, M., Hackney, S.A., Milligan, W.W., and Aifantis, E.C.: Observation and measurement of grain rotation and plastic strain in nanostructured metal thin films. Nanostruct. Mater. 5, 689 (1995).Google Scholar
Ovid’ko, I.A., Sheinerman, A.G., and Skiba, N.V.: Elongated nanoscale voids at deformed special grain boundary structures in nanocrystalline materials. Acta Mater. 59, 678 (2011).Google Scholar