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Grain Boundary Mechanics – Influence of Mechanical Stress Fields on Grain Boundaries

Published online by Cambridge University Press:  15 March 2011

Myrjam Winning
Myrjam Winning*
Affiliation:
Institute of Physical Metallurgy and Metal Physics, RWTH Aachen, Aachen, Germany
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Abstract

The reaction of grain boundaries to mechanical stresses is reviewed. Results of in-situ experiments on planar, symmetric tilt grain boundaries with different tilt axes (<112>, <111> and <100>) as well as twist grain boundaries with <100> rotation axis will be presented. It was found that the motion of planar grain boundaries can be induced by an imposed external stress irrespective of the angle of misorientation i.e. irrespective whether the grain boundary was a low or high angle grain boundary. The observed activation enthalpies of the stress induced grain boundary motion allow conclusions on the migration mechanism. The motion of planar low and high angle grain boundaries under the influence of a mechanical stress field can be attributed to the movement of the grain boundary dislocations which comprise the structure of the boundary. A sharp transition between low and high angle grain boundaries was observed for different tilt axes. The fact that boundaries can also be moved by mechanical forces sheds new light on microstructure evolution during elevated temperature deformation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 819: Symposia N/P – Interfacial Engineering for Optimized Properties III , 2004 , N6.2
Copyright
Copyright © Materials Research Society 2004

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References

1. Li, C.H., Edwards, E.H., Washburn, J. and Parker, E.R., Acta Metall., 1, 223 (1953).Google Scholar
2. Winning, M., Gottstein, G. and Shvindlerman, L.S., Acta Materialia, 49, 211 (2001).Google Scholar
3. Winning, M., Advances in Solid State Physics, ed. Kramer, B. (Springer Verlag Heidelberg, 2003) p. 563.Google Scholar
4. Winning, M., Acta Materialia, 51, 6465 (2003).Google Scholar
5. Winning, M., Zeitschrift für Metallkunde, 95, 233 (2004).Google Scholar
6. Czubayko, U., Molodov, D.A., Petersen, B.-C., Gottstein, G. and Shvindlerman, L.S., Meas. Sci. Technol., 6, 947 (1995).Google Scholar
7. Philibert, J., Diffusion et Transport de Matiére dans les Solides, (Les Éditions de Physique, Les Ulis Cedex France 1985) p. 125.Google Scholar
8. Volin, T.E., Lie, K.H. and Balluffi, R.W., Acta Metall., 19, 263 (1971).Google Scholar
9. Schönfelder, B., Wolf, D., Phillpot, S.R., Furtkamp, M., Interface Science, 5, 245 (1997).Google Scholar
10. Huang, Y., Humphreys, F.J. and Ferry, M., Acta Materialia, 48, 2543 (2000).Google Scholar
11. Huang, Y. and Humphreys, F.J., Acta Materialia, 48, 2017 (2000).Google Scholar
12. Gottstein, G. and Shvindlerman, L.S., Grain Boundary Migration in Metals: Thermodynamics, Kinetics, Applications, (CRC Press LLC, Boca Raton Florida, US 1999).Google Scholar