Creation of Substructure and Nanostructure in Thermomechanical Treatment and Control of Functional Properties of Ti - Ni Alloys with Shape Memory Effect

The effect of various modes of thermomechanical treatment, including intense plastic deformation and postdeformation annealing, on the structure, mechanical, and functional properties of alloys based on titanium nickelide is investigated. The advantages of intense plastic deformation with annealing are shown as compared with traditional thermomechanical treatment. __________ Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 24 – 29, May, 2005.     

Optimal materials for the manufacture of metal-cutting machines

With the goal of improving machine-tool design, attention focuses on the possibility of manufacturing the components of metal-cutting machines from effective new nonmetallic materials that not only meet all the current requirements on such machines but also in most cases improve their performance. The best results are obtained with metal–concrete structures in which the nonmetallic binder consists of modified cement with chemically active additives. Results from materials science are compared with multiyear production tests of metal-cutting machines based on metal–concrete components, which are characterized by stable performance over time. On that basis, an effective new approach is proposed for the modernization of machine tools at the end of their effective working life, without replacing the fundamental structures. The design of the basic structures is analyzed. The production of metal–concrete components in a specialized department of the manufacturing plant is recommended.     

Experimental Search for Chemical Compositions of Superelastic Titanium Alloys with Enhanced Functional Properties

Metal Science and Heat Treatment - Ti – Zr-based alloys with a high zirconium content prepared by vacuum-arc remelting with nonconsumable tungsten electrode are studied. The optimum number of...     

Optimization of the Probe Design for Nuclear Quadrupole Resonance Thermometry

A continuous-flow thermostat design for a nuclear quadrupole resonance thermometer probe is described. This design makes it possible to significantly decrease the length of the coaxial line connecting the inductance coil to the autodyne and to increase the signal-to-noise ratio. The thermostatting range of the working substance of the probe is 200–500 K. As a working substance of the nuclear quadrupole resonance thermometer, a powder of cuprous oxide (Cu₂O) was used. The temperature measurement accuracy is 0.1 K.