Abstract
Samples of a Ti3Al intermetallic compound have been subjected to cold plastic deformation with different logarithmic (true) strains e up to 10.3 using high-pressure torsion (HPT) under a pressure of 9 GPa. Formation of the disordered phase depending on the strain has been studied by X-ray diffraction and electron microscopy. At the degrees of deformation e = 8.7–10.3, a nanostructured disordered phase with a crystal size of mainly 5–15 nm is formed. Recovery of the ordered structure occurs in a temperature range of 400–600°C and is accompanied by the recrystallization of the deformed structure. In recrystallized grains of the ordered phase, antiphase domains appear in the form of oriented plates.
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Original Russian Text © R.N. Eshchenko, O.A. Elkina, A.M. Patselov, V.P. Pilyugin, 2006, published in Fizika Metallov i Metallovedenie, 2006, Vol. 102, No. 6, pp. 655–663.
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Eshchenko, R.N., Elkina, O.A., Patselov, A.M. et al. Effect of plastic deformation on disordering and ordering processes in the intermetallic compound Ti3Al. Phys. Metals Metallogr. 102, 611–618 (2006). https://doi.org/10.1134/S0031918X06120088
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DOI: https://doi.org/10.1134/S0031918X06120088