Abstract
Strain-controlled cyclic tests have been conducted on high-purity titanium single crystals with different orientations. The fatigue mechanisms of the titanium crystals were studied by means of a scanning electron microscope (SEM) and a transmission electron microscope (TEM). It was found that single slip lines, wavy slip lines, double slip lines, twins, and associated slip lines occurred in differently oriented single crystals. A new type of fractographic morphology, parallel traces, was observed. Dislocation patterns and cyclic twins, as well as the mechanical response, were analyzed. The dependence of the deformation mechanisms on the orientations of the single crystals is discussed.
Similar content being viewed by others
References
M.H. Yoo and J.K. Lee: Phil. Mag. A, 1991, vol. 63, p. 987.
M.H. Yoo: Metall. Trans. A, 1981, vol. 12A, pp. 409–18.
A. Akhtar and E. Teghtsoonian: Metall. Trans. A, 1975, vol. 6A, pp. 2201–8.
A. De Crecy, A. Bourret, S. Naka, and A. Lasalmonie: Phil. Mag. A, 1983, vol. 47, p. 245.
J.I. Dickson, J. Ducher, and A. Plumtree: Metall. Trans. A, 1976, vol. 7A, pp. 1559–65.
M. Sugano and C.M. Gilmore: Metall. Trans. A, 1980, vol. 11A, pp. 559–63.
D.I. Golland and C.J. Beevers: Met. Sci. J., 1971, vol. 5, p. 174.
C.M. Ward-Close and C.J. Beeverse: Metall. Trans. A, 1980, vol. 11A, pp. 1007–17.
L. Handfield and J.I. Dickson: in Defects, Fracture and Fatigue, G.C. Sih and J.W. Provan, eds., Martinus Nijhoff Publishers, Hingham, MA, 1983, p. 37.
X. Tan, H. Gu, C. Laird, and N.D.H. Munroe: Metall. Mater. Trans. A, 1998, vol. 29A, pp. 507–12.
S.E. Harvey, P.G. Marsh, and W.W. Gerberich: Acta Metall. Mater., 1994, vol. 42, p. 3493.
T. Kehagias et al.: Scripta Metall. Mater., 1994, vol. 30, p. 1311.
N.Y. Jin and A.T. Winter: Acta Metall., 1984, vol. 32, p. 989.
H. Numakura, Y. Minonishi, and M. Koiwa: Scripta Metall., 1986, vol. 20, p. 1581.
X. Tan and H. Gu: Scripta Metall. Mater., 1995, vol. 33, p. 1977.
X. Tan and H. Gu: Int. J. Fatigue, 1996, vol. 18, p. 329.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tan, X., Guo, H., Gu, H. et al. Cyclic deformation behavior of high-purity titanium single crystals: Part II. Microstructure and mechanism. Metall Mater Trans A 29, 513–518 (1998). https://doi.org/10.1007/s11661-998-0132-z
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-998-0132-z