Plastic Deformations in L10-Ordered Single Crystals with their c/a Ratios Less than Unity


Article Preview

Compressive deformation of L10-ordered single crystals of FePd whose c/a ratio less than unity have been investigated from room temperature to 823 K. The results show that the critical resolved shear stress (CRSS) for octahedral glide of ordinary dislocations is smaller than that of super-lattice dislocations in all the temperature range investigated, that is the opposite sense to the case of Ti-56 mol% Al. The CRSS for ordinary dislocations virtually independent to the temperature. On the other hand, the CRSS for super dislocations exhibits a weak positive temperature dependence from room temperature up to 573 K and decreases in higher temperatures.



Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




K. Tanaka et al., "Plastic Deformations in L10-Ordered Single Crystals with their c/a Ratios Less than Unity", Materials Science Forum, Vols. 561-565, pp. 459-462, 2007

Online since:

October 2007




[1] M. Yamaguchi and H. Inui: Structural Intermetallics, edited by R. Darolia, J.J. Lewandowski, C.T. Liu, P.L. Martin, D.B. Miracle and M.V. Nathal, Minerals, Metals and Materials Society, p.127.

[2] H. Inui, M. Matsumuro, D. -H. Wu and M. Yamaguchi: Phil. Mag. A Vol. 75 (1997), p.395.

[3] S.H. Whang, Q. Feng and Y. -Q. Gao: Acta Mater. Vol. 46 (1998), p.6485.

[4] M. Rao and W.A. Soffa: Scripta Mater. Vol. 36 (1997), p.735.

[5] K. Tanaka, T. Ichitsubo and M. Koiwa: Mater. Sci. & Eng. A Vol. 312 (2001), p.118.

[6] H. Shima, K. Oikawa, A. Fujita, K. Fukamichi, K. Ishida and A. Sakuma: Phys. Rev. B Vol. 70 (2004), 224408.

[7] T. Mehaddene, E. Kentzinger, B. Hennion, K. Tanaka, H. Numakura, A. Marty, V. Parasote, M.C. Cadeville, M. Zemirli and V. Pierron-Bohnes: Phys. Rev. B Vol. 69 (2004), 024304.

DOI: 10.1103/physrevb.69.024304

[8] H. Xu, J.M.K. Wiezorek: Acta Mater. Vol. 52 (2004), p.395.

Fetching data from Crossref.
This may take some time to load.