Abstract
The decohesion energy and the energy of unstable stacking faults for all cracking planes and dislocation slip systems observed experimentally are calculated using the molecular dynamics method with N-particle atomic potentials. A dimensionless parameter characterizing the brittle behavior of the material is calculated for basis, prism, and pyramid faces in terms of the model elaborated by Kelly et al. and extended by Rice and Thompson. Cleavage in Ti3Al is due to low decohesion energy values, which facilitates cracking, and high energies of unstable stacking faults, which prevents the formation of a plastic zone and stress relaxation at its vertex.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Y. Minonishi and M. H. Yoo, Philos. Mag. Lett. 60, 203 (1990).
Y. Umakoshi, T. Nakano, and B. Ogawa, Scr. Mater. 34, 1161 (1996).
H. Inui, Y. Toda, Y. Shirai, and M. Yamaguchi, Philos. Mag. A 69, 1161 (1994).
H. Inui, Y. Toda, and M. Yamaguchi, Philos. Mag. A 63, 1315 (1993).
E. V. Panova, L. E. Karkina, and E. P. Romanov, Fiz. Met. Metalloved. 75, 453 (1993).
M. Legros, A. Couret, and D. Caillard, Philos. Mag. A 73, 61 (1996).
S. A. Court, J. P. A. Lafvander, M. H. Loretto, and H. L. Fraser, Philos. Mag. A 59, 280 (1989).
Y. Minonishi, Philos. Mag. A 62, 1085 (1991).
K. Kishida, J. Yoshikawa, H. Inui, and M. Yamaguchi, Acta Mater. 47, 3405 (1999).
L. Yakovenkova, S. Malinov, T. Novoselova, and L. Karkina, Intermetallics 12, 599 (2004).
L. Yakovenkova, S. Malinov, L. Karkina, and T. Novoselova, Scr. Mater. (2005) (in press).
A. Kelly, W. Tyson, and A. H. Cottrell, Philos. Mag. 15, 567 (1967).
J. R. Rice and R. Thompson, Philos. Mag. 29, 73 (1973).
L. I. Yakovenkova, V. V. Kirsanov, L. E. Karkina, et al., Fiz. Met. Metalloved. 89, 31 (2000).
Y. Sun, J. R. Rice, and L. Truskinovsky, Mater. Res. Soc. Symp. Proc. 213, 243 (1991).
L. I. Yakovenkova and L. E. Karkina, Izv. Ross. Akad. Nauk, Ser. Fiz. 65, 858 (2001).
J. H. Rose, J. R. Smith, and J. Ferrante, Phys. Rev. B 28, 1835 (1983).
L. I. Yakovenkova, L. E. Karkina, and M. Ya. Rabovskaya, Zh. Tekh. Fiz. 73(1), 60 (2003) [Tech. Phys. 48, 56 (2003)].
L. I. Yakovenkova, L. E. Karkina, and M. Ya. Rabovskaya, in Proceedings of the 9th International Conference on Problems of Nanocrystalline Materials, Yekaterinburg, 2002, pp. 457–469.
Yu. N. Gomostyrev, M. I. Katsnelson, et al., Phys. Rev. B 62, 7802 (2000).
Author information
Authors and Affiliations
Additional information
Original Russian Text © L.E. Karkina, L.I. Yakovenkova, M.Ya. Rabovskaya, 2006, published in Zhurnal Tekhnicheskoĭi Fiziki, 2006, Vol. 76, No. 3, pp. 50–56.
Rights and permissions
About this article
Cite this article
Karkina, L.E., Yakovenkova, L.I. & Rabovskaya, M.Y. Computer simulation of Ti3Al intermetallic cleavage fracture. Tech. Phys. 51, 342–348 (2006). https://doi.org/10.1134/S106378420603008X
Received:
Issue Date:
DOI: https://doi.org/10.1134/S106378420603008X