Hostname: page-component-89b8bd64d-ksp62 Total loading time: 0 Render date: 2026-05-08T06:13:33.799Z Has data issue: false hasContentIssue false
  • English
  • Français

Local-structure-affected behavior during self-driven grain boundary migration

Published online by Cambridge University Press:  09 March 2016

X. M. Luo ,
B. Zhang ,
X. F. Zhu ,
Y. T. Zhou ,
T. Y. Xiao  and
G. P. Zhang
X. M. Luo
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People's Republic of China
B. Zhang
Affiliation:
Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, People's Republic of China
X. F. Zhu
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People's Republic of China
Y. T. Zhou
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People's Republic of China
T. Y. Xiao
Affiliation:
Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, People's Republic of China
G. P. Zhang*
Affiliation:
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, People's Republic of China
*
Address all correspondence to G. P. Zhang at gpzhang@imr.ac.cn
Get access

Abstract

In nanocrystalline (nc) metals, it is still not clear how local grain boundary (GB) structures accommodate GB migration at atomic scales and what dominates the motion of atoms at the inherently unstable GB front. Here, we report the adjustment of the local GB structures at atomic scales during self-driven GB migration, simultaneously involving GB dissociation, partial dislocation emission from GB, and faceting/defaceting in the nc Cu. Furthermore, we reveal that the fundamental of GB migration ability is closely related to the local structure, i.e. the GB segment consisting of “hybrid” structural units and delocalized GB dislocations is relatively unstable.

Information

Type
Research Letters
Information
MRS Communications , Volume 6 , Issue 2 , June 2016 , pp. 85 - 91
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Schiotz, J. and Jacobsen, K.W.: A maximum in the strength of nanocrystalline copper. Science 301, 1357 (2003).Google Scholar
2. Yamakov, V., Wolf, D., Phillpot, S.R., Mukherjee, A.K. and Gleiter, H.: Deformation-mechanism map for nanocrystalline metals by molecular-dynamics simulation. Nat. Mater. 3, 43 (2003).Google Scholar
3. McFadden, S.X., Mishra, R.S., Valiev, R.Z., Zhilyaev, A.P. and Mukherjee, A.K.: Low-temperature superplasticity in nanostructured nickel and metal alloys. Nature 398, 684 (1999).CrossRefGoogle Scholar
4. Luo, X.M., Zhu, X.F. and Zhang, G.P.: Nanotwin-assisted grain growth in nanocrystalline gold films under cyclic loading. Nat. Commun. 5, 3021 (2014).Google Scholar
5. Rupert, T.J., Gianola, D.S., Gan, Y. and Hemker, K.J.: Experimental observations of stress-driven grain boundary migration. Science 326, 1686 (2009).Google Scholar
6. Zhu, Y.T., Liao, X.Z. and Wu, X.L.: Deformation twinning in nanocrystalline materials. Prog. Mater. Sci. 57, 1 (2012).Google Scholar
7. 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
8. Yamakov, V., Wolf, D., Phillpot, S.R. and Gleiter, H.: Deformation twinning in nanocrystalline Al by molecular-dynamics simulation. Acta Mater. 50, 5005 (2002).Google Scholar
9. Wu, X.L. and Ma, E.: Deformation twinning mechanisms in nanocrystalline Ni. Appl. Phys. Lett. 88, 061905 (2006).Google Scholar
10. Van Swygenhoven, H., Derlet, P. and Hasnaoui, A.: Atomic mechanism for dislocation emission from nanosized grain boundaries. Phys. Rev. B 66, 024101 (2002).Google Scholar
11. Derlet, P.M., Van Swygenhoven, H. and Hasnaoui, A.: Atomistic simulation of dislocation emission in nanosized grain boundaries. Phil. Mag. 83, 3569 (2003).Google Scholar
12. Murr, L.E.: Strain-induced dislocation emission from grain boundaries in stainless steel. Mater. Sci. Eng. 51, 71 (1981).Google Scholar
13. Straumal, B.B., Polyakov, S.A. and Mittemeijer, E.J.: Temperature influence on the faceting of Σ3 and Σ9 grain boundaries in Cu. Acta Mater. 54, 167 (2006).Google Scholar
14. Merkle, K.L., Thompson, L.J. and Phillipp, F.: Collective effects in grain boundary migration. Phys. Rev. Lett. 88, 225501 (2002).Google Scholar
15. Merkle, K.L. and Thompson, L.J.: Atomic-scale observation of grain boundary motion. Mater. Lett. 48, 188 (2001).Google Scholar
16. Merkle, K.L., Thompson, L.J. and Phillipp, F.: In-situ HREM studies of grain boundary migration. Interface Sci. 12, 277 (2004).Google Scholar
17. Liu, L., Wang, J., Gong, S. and Mao, S.: High resolution transmission electron microscope observation of zero-strain deformation twinning mechanisms in Ag. Phys. Rev. Lett. 106, 175504 (2011).Google Scholar
18. Gottstein, G. and Shvindlerman, L.S.: Grain Boundary Migration in Metals: Thermodynamics, Kinetics, Applications, 2nd ed. (CRC Press, Boca Raton, 2010).Google Scholar
19. Koch, C.T.. Determination of core structure periodicity and point defect density along dislocations. Ph.D. Dissertation, Arizona State University, Tempe, AZ, 2002.Google Scholar
20. Brandon, D.G.: The structure of high-angle grain boundaries. Acta Metall. 14, 1479 (1966).Google Scholar
21. Medlin, D.L., Carter, C.B., Angelo, J.E. and Mills, M.J.: Climb and glide of a/3〈111〉 dislocations in an aluminium Σ = 3 boundary. Phil. Mag. A 75, 733 (1997).Google Scholar
22. Merkle, K.L. and Wolf, D.: Low-energy configurations of symmetric and asymmetric tilt grain boundaries. Phil. Mag. A 65, 513 (1992).CrossRefGoogle Scholar
23. Rittner, J.D. and Seidman, D.N.: 〈110〉 symmetric tilt grain-boundary structures in fcc metals with low stacking-fault energies. Phys. Rev. B 54, 6999 (1996).Google Scholar
24. Tschopp, M.A., Tucker, G.J. and McDowell, D.L.: Structure and free volume of 〈110〉 symmetric tilt grain boundaries with the E structural unit. Acta Mater. 55, 3959 (2007).Google Scholar
25. Horita, Z., Smith, D.J., Furukawa, M., Nemoto, M., Valiev, R.Z. and Langdon, T.G.: An investigation of grain boundaries in submicrometer-grained Al–Mg solid solution alloys using high-resolution electron microscopy. J. Mater. Res. 11, 1880 (1996).Google Scholar
26. Mompiou, F., Legros, M., Radetic, T., Dahmen, U., Gianola, D.S. and Hemker, K.J.: In situ TEM observation of grain annihilation in tricrystalline aluminum films. Acta Mater. 60, 2209 (2012).Google Scholar
27. Egerton, R.F., Li, P. and Malac, M.: Radiation damage in the TEM and SEM. Micron 35, 399 (2004).Google Scholar
28. Krasheninnikov, A.V. and Banhart, F.: Engineering of nanostructured carbon materials with electron or ion beams. Nat. Mater. 6, 723 (2007).Google Scholar
29. Gleiter, H.: The structure and properties of high-angle grain boundaries in metals. Phys. Status Solidi b 45, 9 (1971).Google Scholar
30. Sutton, A.P. and Vitek, V.: On the structure of tilt boundary boundaries in cubic metals I. symmetrical tilt boundaries. Phil. Trans. R. Soc. A 309, 1 (1983).Google Scholar
31. Zhang, H. and Srolovitz, D.J.: Simulation and analysis of the migration mechanism of Σ5 tilt grain boundaries in an fcc metal. Acta Mater. 54, 623 (2006).Google Scholar
32. Gutkin, M.Y., Ovid'ko, I.A. and Skiba, N.V.: Emission of partial dislocations from triple junctions of grain boundaries in nanocrystalline materials. J. Phys. D., Appl. Phys. 38, 3921 (2005).CrossRefGoogle Scholar
33. Van Swygenhoven, H. and Derlet, P.: Grain-boundary sliding in nanocrystalline fcc metals. Phys. Rev. B 64, 224105 (2001).Google Scholar
34. Spearot, D.E., Jacob, K.I. and McDowell, D.L.: Dislocation nucleation from bicrystal interfaces with dissociated structure. Int. J. Plasticity 23, 143 (2007).Google Scholar
35. Derlet, P.M., Hasnaoui, A. and Van Swygenhoven, H.: Atomistic simulations as guidance to experiments. Scr. Mater. 49, 629 (2003).Google Scholar