The microstructure of an iodide titanium single crystal subjected to severe plastic deformation in Bridgman anvils at a pressure of 8 GPa and room temperature or the liquid-nitrogen temperature is studied by electron microscopy and X-ray diffraction. The initial α-titanium single crystal undergoes the baric α→ω transformation during compression and deformation under pressure. A decrease in the deformation temperature to 80 K is found to activate twinning. Upon deformation up to a strain e = 6, the strain hardening at room temperature exceeds the low-temperature strain hardening. At higher strains, the room-temperature strain hardening begins to decrease as compared to the low-temperature strain hardening due to the development of dynamic and postdynamic recrystallization. A decrease in the deformation temperature to 80 K suppresses recrystallization; correspondingly, titanium deformed in liquid nitrogen exhibits a larger microhardness increment in the strain range 6 < e < 10.

A sharp cubic texture is formed in a number of copper alloys subjected to cold deformation by rolling by 98.6–99% followed by recrystallization annealing, which opens up fresh opportunities for long thin ribbons made of these alloys to be used as substrates in the production of second-generation high-T _c superconductor (2G HTSC) cables. The possibility of creating ternary alloys based on a binary Cu-30 at % Ni alloy with additional elements that harden its fcc matrix (iron, chromium) is shown. The measurements of the mechanical properties of textured ribbons made of these alloys demonstrate that their yield strength is higher than that of a textured ribbon made of pure copper by a factor of 2.5–4.5.

We have studied the formation of sharp cube texture in Cu-Ni alloy tapes with nickel content 10, 20, 30, and 40 at %, manufactured by cold rolling to 98.6–99% and subsequent recrystallization annealing. Optimum regimes of annealing are determined for all these alloys, which allow a sharp cube texture with ∼95% cubic grains to be obtained.

It has been shown that, in some copper-based alloys subjected to cold deformation by rolling to 98.6–99% followed by recrystallization annealing, a sharp cube texture can be produced. Optimum conditions of annealing have been determined, which make it possible to produce a sharp biaxial texture in Cu-Ni, Cu-Fe, and Cu-Cr alloys with the fraction of cube grains of more than 95%; this opens a possibility of using thin ribbons made of these alloys as substrates for multilayer film compositions, in particular when developing second-generation high-temperature superconductors.

It is established that Cu-1.6 at % Fe alloy tapes obtained through cold rolling to 98.9% followed by recrystallization annealing possess a sharp cube texture, which opens prospects of using thin tapes of this alloy as substrates for second-generation high-temperature superconductors. The optimum regime of annealing is determined that allows an alloy with sharp biaxial texture containing more than 97% cubic grains to be obtained. The yield stress of a 90-μm-thick Cu-1.6 at % Fe alloy tape upon recrystallization annealing at 800°C for 1 h amounts to 78 MPa, which is about three times higher than the value for a pure copper tape with sharp cube texture.

The structure of a titanium iodide single crystal obtained by zone melting has been studied by metallography, X-ray diffraction, and electron microscopy. It has been shown that the initial bcc titanium single crystal becomes a pseudosingle crystal upon cooling below the temperature of the β → α polymorphic transition. The pseudosingle crystal consists of macroscopic packets, i.e., crystals of lath morphology with a size of 0.1–0.5 cm² in different crystal sections. Each packet consists of α-phase laths of the same orientation, which are separated by dislocation boundaries. A total of six different types of packets in the pseudosingle crystal volume is realized in accordance with the Burgers orientation relationships. The structural heredity in the titanium pseudosingle crystal after the cycle of the α → β → α transformations is confirmed.