Structural–Phase Transformations and Crystallographic Texture in Commercial Ti–6Al–4V Alloy with Globular Morphology of α-Phase Grains: The Rolling Plane
IF 1.1 4区 材料科学Q3 METALLURGY & METALLURGICAL ENGINEERING
V. G. Pushin, D. Yu. Rasposienko, Yu. N. Gornostyrev, N. N. Kuranova, V. V. Makarov, E. B. Marchenkova, A. E. Svirid, O. B. Naimark, A. N. Balakhnin, V. A. Oborin
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Abstract
The commercial Ti–6Al–4V alloy was obtained in an almost single-phase state, formed by finely dispersed globular α-grains with an average size of 12 μm, using thermomechanical processing, including hot rolling. The microtexture and structure of the alloy were studied using X-ray diffractometry and transmission and scanning electron microscopy, including orientation microscopy. It is found that for α-grains the Burgers orientation relationships are satisfied, and twin orientations are ensured in the rolling plane. A significant scattering of the crystallographic orientations of α-grains relative to each other (up to 10°–15°) is established for each group of close Burgers orientations as a result of plastic deformation by rolling at high temperatures. Clusters of microtexture regions in the layered microstructure of grains and the formation mechanisms and mutual crystallographic misorientations of microtexture regions and grains in the alloy have been identified.
期刊介绍：
The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.
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