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Quantitative understanding of the effect of grain rotation on the nanovoid growth

Published online by Cambridge University Press:  02 November 2018

Xudong Li  and
Jianqiu Zhou
Xudong Li
Affiliation:
School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, Jiangsu Province 210009, China; and Key Lab of Design and Manufacture of Extreme Pressure Equipment, Nanjing Tech University, Nanjing, Jiangsu Province 210009, China
Jianqiu Zhou*
Affiliation:
School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, Jiangsu Province 210009, China; Department of Mechanical Engineering, Wuhan Institute of Technology, Wuhan, Hubei Province 430070, China; and Key Lab of Design and Manufacture of Extreme Pressure Equipment, Nanjing Tech University, Nanjing, Jiangsu Province 210009, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A mechanical model is developed to explain the influence of grain rotation on nanovoid growth in nanocrystalline solids in the current paper. In the framework of the mechanical model, the dislocations released from the nanovoid surface will be affected by four stresses: the driving stress induced by far-field stress, the stress arising from grain rotation, the image stress caused by the free surface of the nanovoid, and the back stress generated by the previously emitted dislocations. Furthermore, under the condition of different rotational strength and surface effects, we analyzed in detail the influence of the important parameters such as nanovoid radius, nucleation radius, dislocation emission angle, relative distance, rotation grain size, rotation coefficient, and direction angle on the critical stress. Finally, we discuss the effect of the coupling of rotational deformation and the grain boundary on the growth of the nanovoid. As a conclusion, the high stress nearby the nanovoid can be released by grain rotation, which inhibits the growth of the nanovoid.

Keywords

nanovoidgrain rotationnanocrystallinedislocationgrainboundaryrotational strength
Type
Article
Information
Journal of Materials Research , Volume 34 , Issue 2 , 28 January 2019 , pp. 271 - 281
Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Aifantis, E.C.: Deformation and failure of bulk nanograined and ultrafine-grained materials. Mater. Sci. Eng., A 503, 190 (2009).CrossRefGoogle Scholar
Lubarda, V.A., Schneider, M.S., Kalantar, D.H., Remington, B.A., and Meyers, M.A.: Void growth by dislocation emission. Acta Mater. 52, 1397 (2004).CrossRefGoogle Scholar
Meyers, M.A., Mishra, A., and Benson, D.J.: Mechanical properties of nanocrystalline materials. Prog. Mater. Sci. 51, 427 (2006).CrossRefGoogle Scholar
Wang, L., Zhou, J., Liu, Y., Zhang, S., Wang, Y., and Xing, W.: Nanovoid growth in nanocrystalline metal by dislocation shear loop emission. Mater. Sci. Eng., A 528, 5428 (2011).CrossRefGoogle Scholar
Zhang, S., Zhou, J., Wang, L., Wang, Y., and Dong, S.: Effect of twin boundaries on nanovoid growth based on dislocation emission. Mater. Sci. Eng., A 582, 29 (2013).CrossRefGoogle Scholar
Jing, P., Yuan, L., Shivpuri, R., Xu, C., Zhang, Y., Shan, D., and Guo, B.: Evolution of spherical nanovoids within copper polycrystals during plastic straining: Atomistic investigation. Int. J. Plast. 100, 122 (2018).CrossRefGoogle Scholar
Fang, T.H., Li, W.L., Tao, N.R., and Lu, K.: Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper. Science 331, 1587 (2011).CrossRefGoogle ScholarPubMed
Liu, P., Mao, S.C., Wang, L.H., Han, X.D., and Zhang, Z.: Direct dynamic atomic mechanisms of strain-induced grain rotation in nanocrystalline, textured, columnar-structured thin gold films. Scr. Mater. 64, 343 (2011).CrossRefGoogle Scholar
Li, J. and Chen, S.: Cooperative toughening mechanism of nanocrystalline materials by grain rotation and shear-coupled migration of grain boundaries. Mater. Lett. 121, 174 (2014).CrossRefGoogle Scholar
Szlufarska, I., Nakano, A., and Vashishta, P.: A crossover in the mechanical response of nanocrystalline ceramics. Science 309, 911 (2005).CrossRefGoogle ScholarPubMed
Rudd, R.E.: Void growth in bcc metals simulated with molecular dynamics using the Finnis–Sinclair potential. Philos. Mag. 89, 3133 (2009).CrossRefGoogle Scholar
Zhao, K., Gudem Ringdalen, I., Wu, J., He, J., and Zhang, Z.: Ductile mechanisms of metals containing pre-existing nanovoids. Comput. Mater. Sci. 125, 36 (2016).CrossRefGoogle Scholar
Wang, J.P., Yue, Z.F., Wen, Z.X., Zhang, D.X., and Liu, C.Y.: Orientation effects on the tensile properties of single crystal nickel with nanovoid: Atomistic simulation. Comput. Mater. Sci. 132, 116 (2017).CrossRefGoogle Scholar
Xu, S., Su, Y., Chen, D., and Li, L.: Plastic deformation of Cu single crystals containing an elliptic cylindrical void. Mater. Lett. 193, 283 (2017).CrossRefGoogle Scholar
Goyat, V., Verma, S., and Garg, R.K.: Reduction in stress concentration around a pair of circular holes with functionally graded material layer. Acta Mech. 229, 1045 (2017).CrossRefGoogle Scholar
Stevens, A.L., Davison, L., and Warren, W.E.: Spall fracture in aluminum monocrystals: A dislocation-dynamics approach. J. Appl. Phys. 43, 4922 (1972).CrossRefGoogle Scholar
Lubarda, V.A.: Emission of dislocations from nanovoids under combined loading. Int. J. Plast. 27, 181 (2011).CrossRefGoogle Scholar
Ovid’ko, I.A. and Sheinerman, A.G.: Special rotational deformation in nanocrystalline metals and ceramics. Scr. Mater. 59, 119 (2008).CrossRefGoogle Scholar
Bobylev, S.V., Mukherjee, A.K., and Ovid’ko, I.A.: Transition from plastic shear into rotation deformation mode in nanocrystalline metals and ceramics. Rev. Adv. Mater. Sci. 19, 103 (2009).Google Scholar
Morozov, N.F., Ovid’ko, I.A., Sheinerman, A.G., and Aifantis, E.C.: Special rotational deformation as a toughening mechanism in nanocrystalline solids. J. Mech. Phys. Solids 58, 1088 (2010).CrossRefGoogle Scholar
Li, J., Soh, A.K., and Chen, S.: A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries. Mater. Lett. 137, 218 (2014).CrossRefGoogle Scholar
Fang, Q.H., Li, B., and Liu, Y.W.: Interaction between edge dislocations and a circular hole with surface stress. Phys. Status Solidi B 244, 2576 (2007).CrossRefGoogle Scholar
Zhao, Y., Fang, Q., and Liu, Y.: Effect of nanograin boundary sliding on nanovoid growth by dislocation shear loop emission in nanocrystalline materials. Eur. J. Mech. Solid. 49, 419 (2015).CrossRefGoogle Scholar
Wang, L., Zhou, J., Zhang, S., Liu, Y., and Dong, S.: Effects of accommodated grain boundary sliding on triple junction nanovoid nucleation in nanocrystalline materials. Mech. Mater. 71, 10 (2014).CrossRefGoogle Scholar
He, T., Zhou, J., and Liu, H.: A quantitative understanding on effects of finest nanograins on nanovoid growth in nanocrystalline materials. J. Nanopart. Res. 17, 380 (2015).CrossRefGoogle Scholar
Yang, Q. and Gao, C.: Reduction of the stress concentration around an elliptic hole by using a functionally graded layer. Acta Mech. 227, 2427 (2016).CrossRefGoogle Scholar
Goudarzi, T., Avazmohammadi, R., and Naghdabadi, R.: Surface energy effects on the yield strength of nanoporous materials containing nanoscale cylindrical voids. Mech. Mater. 42, 852 (2010).CrossRefGoogle Scholar
Zhang, W.X., Wang, T.J., and Chen, X.: Effect of surface/interface stress on the plastic deformation of nanoporous materials and nanocomposites. Int. J. Plast. 26, 957 (2010).CrossRefGoogle Scholar
Shi, J. and Zikry, M.A.: Grain size, grain boundary sliding, and grain boundary interaction effects on nanocrystalline behavior. Mater. Sci. Eng., A 520, 121 (2009).CrossRefGoogle Scholar
Li, Q. and Chen, Y.H.: Surface effect and size dependence on the energy release due to a nanosized hole expansion in plane elastic materials. Mech. Mater. 42, 852 (2008).Google Scholar
Padmanabhan, K.A. and Gleiter, H.: Optimal structural superplasticity in metals and ceramics of microcrystalline- and nanocrystalline-grain sizes. Mater. Sci. Eng., A 381, 28 (2004).CrossRefGoogle Scholar
Bobylev, S.V., Gutkin, M.Y., and Ovid’ko, I.A.: Partial and split dislocation configurations in nanocrystalline metals. Phys. Rev. B 73, 064102 (2006).CrossRefGoogle Scholar
Bobylev, S.V., Mukherjee, A.K., and Ovid’ko, I.A.: Emission of partial dislocations from amorphous intergranular boundaries in deformed nanocrystalline ceramics. Scr. Mater. 60, 36 (2009).CrossRefGoogle Scholar
Feng, H., Fang, Q.H., Zhang, L.C., and Liu, Y.W.: Special rotational deformation and grain size effect on fracture toughness of nanocrystalline materials. Int. J. Plast. 42, 50 (2013).CrossRefGoogle Scholar
Fressengeas, C., Taupin, V., and Capolungo, L.: An elasto-plastic theory of dislocation and disclination fields. Int. J. Solids Struct. 48, 3499 (2011).CrossRefGoogle Scholar
Traiviratana, S., Bringa, E.M., Benson, D.J., and Meyers, M.A.: Void growth in metals: Atomistic calculations. Acta Mater. 56, 3874 (2008).CrossRefGoogle Scholar
Ovid’ko, I.A. and Sheinerman, A.G.: Grain size effect on crack blunting in nanocrystalline materials. Scr. Mater. 60, 627 (2009).CrossRefGoogle Scholar
Wang, L., Zhou, J., Zhang, S., Liu, H., and Dong, S.: Effect of dislocation–GB interactions on crack blunting in nanocrystalline materials. Mater. Sci. Eng., A 592, 128 (2014).CrossRefGoogle Scholar