Abstract
We studied the effect of short fibers on the mechanical properties of a magnesium alloy. In particular, deformation mechanisms in a Mg-Al-Sr alloy reinforced with short alumina fibers were studied in situ using neutron diffraction and acoustic emission methods. The fibers’ plane orientation with respect to the loading axis was found to be a key parameter, which influences the acting deformation processes, such as twinning or dislocation slip. Furthermore, the twinning activity was much more significant in samples with parallel fiber plane orientation, which was confirmed by both acoustic emission and electron backscattering diffraction results. Neutron diffraction was also used to assist in analyzing the acoustic emission and electron backscattering diffraction results. The simultaneous application of the two in situ methods, neutron diffraction and acoustic emission, was found to be beneficial for obtaining complementary datasets about the twinning and dislocation slip in the magnesium alloys and composites used in this study.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. W. Clyne and P. J. Withers, An Introduction to Metal Matrix Composites, pp.7–9, Cambridge University Press, Cambridge (1993).
N. Chawla and K. K. Chawla, Metal Matrix Composites. pp.5–35, Springer Verlag, New York (2006).
Z. Trojanová, P. Lukác, W. Riehemann, and B. L. Mordike, Mater. Sci. Eng. A 324, 122 (2002).
G. Timelli, G. Camicia, S. Ferraro, and R. Molina, Met. Mater. Int. 20, 677 (2014).
R. J. Arsenault and N. Shi, Mater. Sci. Eng. 81, 175 (1986).
R. M. Aikin and L. Christodoulou, Scr. Metall. Mater. 25, 9 (1991).
J. G. Kim, J. I. Bang, Y. J. Kim, and Y. H. Park, Korean J. Met. Mater. 51, 857 (2013).
Y. H. Yeh, H. Nakashima, H. Kurishita, S. Goto, and H. Yoshinaga, Mater. Trans., JIM. 31, 284 (1990).
L. P. Kubin and A. Mortensen, Scripta Mater. 48, 119 (2003).
K. Máthis, G. Farkas, M. Janecek, and H. Choe, Mater. Sci. Eng. A 575, 1 (2013).
J. Capek, K. Máthis, B. Clausen, J. Stráská, P. Beran, and P. Lukáš, Mater. Sci. Eng. A 602, 25 (2014).
O. Muránsky, M. R. Barnett, D. G. Carr, S. C. Vogel, and E. C. Oliver, Acta Mater. 58, 1503 (2010).
P. Dobron, F. Chmelík, J. Bohlen, K. Hantzsche, D. Letzig, and K. U. Kainer, Int. J. Mater. Res. 100, 888 (2009).
K. Máthis, F. Chmelík, M. Janecek, B. Hadzima, Z. Trojanová, and P. Lukác, Acta Mater. 54, 5361 (2006).
A. Vinogradov, D. Orlov, A. Danyuk, and Y. Estrin, Acta Mater. 61, 2044 (2013).
Z. Trojanová, Z. Száraz, F. Chmelík, and P. Lukác, Mater. Sci. Eng. A 528, 2479 (2011).
M. A. Gharghouri, G. C. Weatherly, J. D. Embury, and J. Root, Philos. Mag. A 79, 1671 (1999).
F. Delannay, Comprehensive Composite Materials (Elsevier, Amsterdam; Ed. T.W. Clyne), 3, 341 (2000).
F. F. Lavrentev, Y. A. Pokhil, and I. N. Zolotukhina, Mater. Sci. Eng. 32, 113 (1978).
C. H. Cáceres and P. Lukác, Philos. Mag. 88(7), 977 (2008).
Z. Trojanová, G. Farkas, K. Máthis, P. Lukác, Proceedings of TMS 2014 on Magnesium Technology (eds. M. Alderman, M. V. Manuel, N. Hort, N. R. Neelameggham), p.435, The Mineral, Metals and Materials Society, San Diego, USA (2014).
S. R. Agnew, M. H. Yoo, and C. N. Tome, Acta Mater. 49, 4277 (2001).
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Farkas, G., Choe, H., Máthis, K. et al. In situ investigation of deformation mechanisms in magnesium-based metal matrix composites. Met. Mater. Int. 21, 652–658 (2015). https://doi.org/10.1007/s12540-015-4611-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12540-015-4611-7