Paper Titles

High-Rate Plastic Deformation of Nanocrystalline Tantalum to Large Strains: Molecular Dynamics Simulation
p.3

Effects of Microalloying on the Mobility and Mechanical Response of Interfaces in Nanocrystalline Cu
p.21

Molecular Dynamics Simulations of Nanocrystalline Nickel and Copper Revealing Different Failure Model of FCC Metals
p.31

A Computational Model for Intergranular Fracture in Nanocrystalline and Ultra-Fine Polycrystalline Metals
p.39

Crack Blunting through Lattice Dislocation Slip in Nanocrystalline and Ultrafine-Grained Materials
p.55

In Situ Transmission Electron Microscopy Investigation of the Deformation Behavior of Cu with Nanoscale Twins
p.63

Microstructural Origin of Superior Compressive Ductility of a Nanocrystalline Metal
p.73

Overview of the Grain Size Effects on the Mechanical and Deformation Behaviour of Electrodeposited Nanocrystalline Nickel − From Nanoindentation to High Pressure Torsion
p.85

Experimental Evidence that the Onset of Mechanical Softening in Nanocrystalline Metals is Strain Rate Dependent
p.99

HomeMaterials Science ForumMaterials Science Forum Vols. 633-634Crack Blunting through Lattice Dislocation Slip in...

Crack Blunting through Lattice Dislocation Slip in Nanocrystalline and Ultrafine-Grained Materials

Article Preview

Abstract:

The grain size effect on blunting of cracks in nanocrystalline and ultrafine-grained materials (UFG) is theoretically described. Within our description, lattice dislocations emitted from cracks are stopped at grain boundaries. The stress fields of these dislocations suppress further dislocation emission from cracks in nanocrystalline and UFG materials, and the suppression depends on grain size. The dependences of the number of dislocations emitted by a crack on grain size (ranging from 10 to 300 nm) in Cu and 3C-SiC (the cubic phase of silicon carbide) are calculated which characterize the grain size effect on crack blunting that crucially influences ductility of these materials.

You might also be interested in these eBooks

Ductility of Bulk Nanostructured Materials

Info:

Periodical:

Materials Science Forum (Volumes 633-634)

Pages:

55-62

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.633-634.55

Citation:

Cite this paper

Online since:

November 2009

Authors:

Ilya A. Ovidko, A.G. Sheinerman

Keywords:

Crack, Dislocation, Nanocrystalline Material

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] K.S. Kumar, S. Suresh and H. Van Swygenhoven: Acta Mater. Vol. 51 (2003), p.5743.

[2] G. -D. Zhan, J.D. Kuntz and A.K. Mukherjee: MRS Bull. Vol. 29 (2004), p.22.

[3] D. Wolf, V. Yamakov, S.R. Phillpot, A.K. Mukherjee and H. Gleiter: Acta Mater. Vol. 53 (2005), p.1.

[4] B.Q. Han, E. Lavernia and F.A. Mohamed: Rev. Adv. Mater. Sci. Vol. 9 (2005), p.1.

[5] I.A. Ovid'ko: Rev. Adv. Mater. Sci. Vol. 10 (2005), p.89.

[6] I.A. Ovid'ko: Int. Mater. Rev. Vol. 50 (2005), p.65.

[7] M.A. Meyers, A. Mishra and D.J. Benson: Progr. Mater. Sci. Vol. 51 (2006), p.427.

[8] M. Dao, L. Lu, R.J. Asaro, J.T.M. De Hosson and E. Ma: Acta Mater. Vol. 55 (2007), p.4041.

[9] R.B. Figueiredo, M. Kawasaki and T.G. Langdon: Rev. Adv. Mater. Sci. Vol. 19 (2009), p.1.

[10] G.J. Weng: Rev. Adv. Mater. Sci. Vol. 19 (2009), p.41.

[11] C.C. Koch, I.A. Ovid'ko, S. Seal and S. Veprek: Structural �anocrystalline Materials: Fundamentals and Applications (Cambridge University Press, Cambridge, 2007).

[12] F. Wakai, S. Sakagachi and Y. Matsuno: Adv. Cer. Mater. Vol. 1 (1986), p.259.

[13] F. Wakai and H. Kato: Adv. Cer. Mater. Vol. 3 (1988), p.71.

[14] N. Kondo, F. Wakai, T. Nishioka and A. Yamakawa: J. Mater. Sci. Lett. Vol. 14 (1995), p.1369.

[15] R.Z. Valiev, I.V. Alexandrov, Y.T. Zhu and T.C. Lowe: J. Mater. Res. Vol. 17 (2002), p.5.

[16] R.Z. Valiev: Nature Mater. Vol. 3 (2004), p.511.

[17] Y.H. Zhao, Y.T. Zhu, X.Z. Liao, Z. Horita and T.G. Langdon: Appl. Phys. Lett. Vol. 89 (2006), art. 121906.

[18] Y.H. Zhao, J.F. Bingert, X.Z. Liao, B.Z. Cui, K. Han, A.V. Sergueeva, A.K. Mukherjee, R.Z. Valiev, T.G. Langdon and Y.T. Zhu: Adv. Mater. Vol. 18 (2006), p.2949.

DOI: 10.1002/adma.200601472

[19] Y.H. Zhao, J.F. Bingert, Y.T. Zhu, X.Z. Liao, R.Z. Valiev, Z. Horita, T.G. Langdon, Y.Z. Zhou and E.J. Lavernia: Appl. Phys. Lett. Vol. 92 (2008), art. 081903.

DOI: 10.1063/1.2870014

[20] X. Zhou, D.M. Hulbert, J.D. Kuntz, R.K. Sadangi, V. Shukla, B.H. Kear and A.K. Mukherjee: Mater. Sci. Eng. A Vol. 394 (2005), p.353.

[21] G.D. Zhan, J.E. Garay and A.K. Mukherjee: Nano Lett. Vol. 5 (2005), p.2593.

[22] X. Xu, T. Nishimura, N. Hirosaki, R.J. Xie, Y. Yamamoto and H. Tanaka: Acta Mater. Vol. 54 (2006), p.255.

[23] A.K. Mukherjee: Mater. Sci. Eng. A Vol. 322 (2002), p.1.

[24] A.A. Karimpoor, U. Erb, K.T. Aust and G. Palumbo: Scr. Mater. Vol. 49 (2003), p.651.

[25] K.S. Kumar, S. Suresh, M.F. Chisholm, J.A. Norton and P. Wang: Acta Mater. 51 (2003), p.387.

[26] Y.M. Wang and E. Ma: Acta Mater. Vol. 52 (2004), p.1699.

[27] K. -M. Youssef, R.O. Scattergood, K.L. Murty and C.C. Koch: Appl. Phys. Lett. Vol. 85 (2004), p.929; Scripta Mater. Vol. 54 (2006), p.251.

[28] K.M. Youssef, R.O. Scattergood, K.L. Murty, J.A. Horton and C.C. Koch: Appl. Phys. Lett. 87 (2005), art. 091904.

DOI: 10.1063/1.2034122

[29] A.V. Sergueeva and A.K. Mukherjee: Rev. Adv. Mater. Sci. Vol. 13 (2006), p.1.

[30] A.V. Sergueeva, N.A. Mara, N.A. Krasilnikov, R.Z. Valiev and A.K. Mukherjee: Philos. Mag. Vol. 86 (2006), p.5797.

[31] Y.H. Zhao, X.Z. Liao, S. Cheng, E. Ma and Y.T. Zhu: Adv. Mater. Vol. 18 (2006), p.2280.

[32] H. Li and F. Ebrahimi: Appl. Phys. Lett. Vol. 84 (2004), p.4307.

[33] H. Li and F. Ebrahimi: Adv. Mater. Vol. 17 (2005), p. (1969).

[34] F. Ebrahimi, A.J. Liscano, D. Kong, Q. Zhai and H. Li: Rev. Adv. Mater. Sci. 13 (2006), p.33.

[35] J.R. Rice and R.M. Thompson: Philos. Mag. Vol. 29 (1974), p.73.

[36] J.R. Rice: J. Mech. Phys. Sol. Vol. 40 (1992), p.239.

[37] G.E. Beltz, D.M. Lipkin and L.L. Fischer: Phys. Rev. Lett. Vol. 82 (1999), p.4468.

[38] K.S. Kumar, S. Suresh, M.F. Chisholm, J.A. Norton and P. Wang: Acta Mater. Vol. 51 (2003), p.387.

[39] A. Latapie and D. Farkas: Phys. Rev. B Vol. 69 (2004), art. 134110.

[40] I. -H. Lin and R. Thompson: Acta Metall. Vol. 34 (1986), p.187.

[41] M. Jin, A.M. Minor, E.A. Stach and J.W. Morris Jr.: Acta Mater. Vol. 52 (2004), p.5381.

[42] W.A. Soer, J. Th.M. De Hosson, A.M. Minor, J.W. Morris Jr. and E.A. Stach: Acta Mater. Vol. 52 (2004), p.5783.

[43] J.T.M. De Hosson, W.A. Soer, A.M. Minor, Z. Shan, E.A. Stach, S.A. Syed Asif and O.L. Warren: J. Mater. Sci. Vol. 41 (2006), p.7704.

DOI: 10.1007/s10853-006-0472-2

[44] K. Zhang, J.R. Weertman and J.A. Eastman: Appl. Phys. Lett. Vol. 85 (2004), p.5197; Vol. 87 (2005), art. 061921.

[45] P.L. Gai, K. Zhang and J. Weertman: Scripta Mater. Vol. 56 (2007), p.25.

[46] X.Z. Liao, F. Zhou, E.J. Lavernia, D.W. He and Y.T. Zhu: Appl. Phys. Lett. Vol. 83 (2003), p.5062.

[47] X.Z. Liao, J.Y. Huang, Y.T. Zhu, F. Zhou and E.J. Lavernia: Phil. Mag. Vol. 83 (2003), p.3065.

[48] K.S. Kumar, S. Suresh, M.F. Chisholm, J.A. Horton and P. Wang: Acta Mater. Vol. (2003), p.387.

[49] X.Z. Liao, F. Zhou, S.G. Srinivasan, Y.T. Zhu, R.Z. Valiev and D.V. Gunderov: Appl. Phys. Lett. Vol. 84 (2004), p.592.

[50] Y.M. Wang, A.M. Hodge, J. Biener, A.V. Hamza, D.E. Barnes, K. Liu and T.G. Nieh: Appl. Phys. Lett. Vol. 86 (2005), art. 101915.

DOI: 10.1063/1.1883335

[51] I.A. Ovid'ko, A.G. Sheinerman and E.C. Aifantis: Acta Mater. Vol. 56 (2008), p.2718.

[52] M. Yu Gutkin, I.A. Ovid'ko and N.V. Skiba: Philos. Mag. Vol. 88 (2008), p.1137.

[53] I.A. Ovid'ko and A.G. Sheinerman: Appl. Phys. Lett. Vol. 90 (2007), art. 171927; Acta Mater. Vol. 57 (2009), in press.