Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-19T11:52:24.388Z Has data issue: false hasContentIssue false
  • English
  • Français

Grain Boundary Responses to Local and Applied Stress: An In Situ TEM Deformation Study

Published online by Cambridge University Press:  26 July 2012

Bryan Miller ,
Jamey Fenske ,
Dong Su ,
Chung-Ming Li ,
Lisa Dougherty  and
Ian M. Robertson
Bryan Miller
Affiliation:
bmiller1@uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Jamey Fenske
Affiliation:
bmiller1@uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Dong Su
Affiliation:
bmiller1@uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Chung-Ming Li
Affiliation:
bmiller1@uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Lisa Dougherty
Affiliation:
bmiller1@uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Ian M. Robertson
Affiliation:
ianr@ad.uiuc.edu, University of Illinois at Urbana-Champaign, Materials Science and Enigneering, 1304 W. Green St., Urbana, IL, 61801, United States
Get access

Abstract

Deformation experiments at temperatures between 300 and 750 K have been performed in situ in the transmission electron microscope to investigate dislocation interactions and reactions with grain boundaries and other obstacles. Dislocations, both partial and perfect, as well as deformation twins have been observed being emitted from grain boundaries and, in some cases, even the same grain boundary. The ejection of dislocations from the grain boundary can result in its partial or total annihilation. In the latter case, the disintegration of the grain boundary was accompanied by grain growth and a change in misorientation.

Keywords

dislocationstransmission electron microscopy (TEM)grain boundaries
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 976: Symposium EE – Size Effects in the Deformation of Materials – Experiments and Modeling , 2006 , 0976-EE02-01
Copyright
Copyright © Materials Research Society 2007

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.)

References

1. Valiev, R.Z. and Langdon, T.G., Progress in Materials Science, 51 p. 881–981, (2006).Google Scholar
2. Meyers, M.A., Mishra, A., and Benson, D.J., Progress in Materials Science, 51 p. 427–556, (2006).Google Scholar
3. Valiev, R.Z., Alexandrov, I.V., Zhu, Y.T., and Lowe, T.C., J.Mater. Res., 17 p. 5–8, (2002).Google Scholar
4. Chinh, N.Q., Szommer, P., Horita, Z., and Langdon, T.G., Adv. Mater., 18 p. 34–39, (2006).Google Scholar
5. Wu, X.-L. and Ma, E., Appl. Phys. Lett., 88 p. 231911, (2006).Google Scholar
6. Wang, Y.M., Hamza, A.V., and Ma, E., Appl. Phys. Lett., 86 p. 241917, (2005).Google Scholar
7. Weertman, J.R., Farkas, D., Hemker, K., Kung, H., Mayo, M., Mitra, R., and Swygenhoven, H.V., MRS Bulletin, 24 p. 44–50, (1999).Google Scholar
8. Hemker, K.J., Gianola, D.S., Van Petegem, S., Legros, M., Brandstetter, S., and Van Swygenhoven, H., Acta Mater., 54 p. 2253–63, (2006).Google Scholar
9. Wu, X.-L., Zhu, Y.T., and Ma, E., Appl. Phys. Lett., 88 p. 121905–121908, (2006).Google Scholar
10. Wu, X., Zhu, Y.T., Chen, M.W., and Ma, E., Scripta Mater., 54 p. 1685–1690, (2006).Google Scholar
11. Robertson, I.M., Phil. Mag. A 54 p. 821–835, (1986).Google Scholar
12. Kumar, M. and Schuh, C.A., Scripta Mater., 54 p. 961–962, (2006).Google Scholar
13. Christian, J.W. and Mahajan, S., Progress in Materials Science, 39 p. 1–157, (1995).Google Scholar
14. Robertson, I.M., Beaudoin, A., Al-Fadhalah, K., Chun-Ming, L., Robach, J., Wirth, B.D., Arsenlis, A., Ahn, D., and Sofronis, P., Materials Science and Engineering A, 400–401 p. 245–250, (2005).Google Scholar
15. AL-Fadhalah, K., Li, C.M., Beaudoin, A.J., Robertson, I.M., TomÈ, C.N., and Korzekwa, D.A., Acta Mater., (submitted 2007).Google Scholar
16. Miller, B. and Robertson, I., unpublished work, (2007).Google Scholar
17. Dougherty, L.M., Robertson, I.M., and Vetrano, J.S., Acta Mater., 51 p. 4367, (2003).Google Scholar
18. Jin, M., Minor, A.M., Stach, E.A., and Morris, J.W. Jr, Acta Mater., 52 p. 5381, (2004).Google Scholar
19. Robach, J.S., Robertson, I.M., Wirth, B.D., and Arsenlis, A., Phil. Mag., 83 p. 955–967, (2003).Google Scholar