Abstract
Dynamic equal-channel angular pressing, a new method for the intense plastic deformation of materials, was developed and applied to titanium, as an example. A sample, accelerated in a gun to a velocity of 300 m/s, impinged on a matrix with intesecting channels. The deformation of titanium occurred at a shear-deformation rate of 104–105 s−1 and pressure of several GPa. Upon deformation, the strength of titanium increased by a factor of 2, with the plasticity remaining at an acceptable level. Metallographic and electron microscopy analyses demonstrated that, under the action of intense deformation, the initial course-grained structure of titanium transforms into an ultrafine-grained one.
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E. V. Shorokhov, I. N. Zhgilev, and R. Z. Valiev, RF Patent No. 2283717, Byull. Izobret., No. 26 (2006).
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Original Russian Text © E.V. Shorokhov, I.N. Zhgilev, D.V. Gunderov, A.A. Gurov, 2008, published in Khimicheskaya Fizika, 2008, Vol. 27, No. 3, pp. 77–80.
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Shorokhov, E.V., Zhgilev, I.N., Gunderov, D.V. et al. Dynamic pressing of titanium for producing an ultrafine-grained structure. Russ. J. Phys. Chem. B 2, 251–254 (2008). https://doi.org/10.1134/S1990793108020139
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DOI: https://doi.org/10.1134/S1990793108020139