Abstract
It is assumed that the core structure of screw dislocations in the h.c.p. lattice of α-Ti can be described by a sessile splitting on the prism plane and on the first order pyramidal plane simultaneously and that slip can proceed after its transformation into a glissile configuration on the prism plane. The strengthening by interstitial solutes O, N, C is explained by their impeding role in these sessile-glissile transformations. A good agreement between the theoretical temperature dependences of the effective stress for different interstitial content and the experimental values can be reached if the effect of impurities on the stacking fault energies is also taken into account. The similarity between the role of screw dislocations in the low temperature deformation of h.c.p. metals with more slip systems operating and of b.c.c. metals is stressed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Conrad H.,Doner M., deMeester B., University of Kentucky Tech. Rep. UKY 50 - 72-MET 15.
Conrad H., Acta Met.14 (1966), 1631.
Tyson W. R., Canad. Met. Quart.6 (1967), 301.
Tyson W. R., Scripta Met.3 (1969), 917.
Kratochvíl J., Conrad H., Scripta Met.4 (1970), 815.
Conrad H.,de Meester B.,Doner M.,Okazaki K., ASM Symposium “The Physics of Solid Solution Strengthening in Alloys”, Chicago 1973.
Levine E. D., Trans. AIME236 (1967), 1558.
Sastry D. H., Vasu K. I., Acta Met.20 (1972), 399.
Cass T. R.,in The Science, Technology and Application of Titanium, Pergamon Press, Oxford 1970, p. 479.
Šob M., phys. stat. sol. (a)24 (1974), K133.
Kroupa F., Vítek V., Canad. J. Phys.45 (1967), 945.
Frank W., Šesták B., Scripta Met.4 (1970), 451.
Tanaka T., Conrad H., Acta Met.20 (1972), 1019.
Okazaki K., Conrad H., Acta Met.21 (1973), 1117.
Schetchman D., Brandon D. G., J. Mater. Sci.8 (1973), 1233.
Hirth J. P., Lothe J., Theory of Dislocations, McGraw-Hill, New York 1968.
Regnier P., Dupouy J. M., phys. stat. sol.28 (1968), K55.
Churchman A. T., Proc. Roy. Soc.A 226 (1954), 216.
Fleischer R. L., Acta Met.10 (1962), 835.
Wüthrich C., Diplomarbeit, Universität Stuttgart, 1971.
Wüthrich C.,Frank W.,in Discussion Meeting on Defects in Refractory Metals, Mol 1971.
Vítek V., phys. stat. sol.22 (1967), 453.
Schoeck G., phys. stat. sol.8 (1965), 499.
Friedel J., Dislocations, Pergamon Press, Oxford 1964.
Frank F., Z. f. Naturforsch.22a (1967), 365.
Šob M., Diploma Thesis, Charles University, Prague 1974.
Fletcher R., Powell M. D. J., Computer Journal6 (1963), 163.
Zeyfang R., Conrad H., Acta Met.19 (1971), 985.
Akhtar A., Teghtsoonian A., Acta Met.19 (1971), 655.
Sakai T., Fine M. E., Scripta Met.8 (1974), 540.
Mendelson S., J. Appl. Phys.41 (1970), 1893.
Vítek V., Crystal Lattice Defects5 (1974), 1.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Šob, M., Kratochvíl, J. & Kroupa, F. Theory of strengthening of alpha titanium by interstitial solutes. Czech J Phys 25, 872–890 (1975). https://doi.org/10.1007/BF01589305
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01589305