Competitions of professional skills as a form of presentation of student’s professional achievements

В статье представлен обзор участие образовательных организаций среднего профессионального образования Свердловской области в конкурсах профессионального мастерства различных уровней: от областного до международного. Определена роль Областного центра координации профессионального образования как организатора конкурсной деятельности.The article deals with a review of participation of the secondary professional educational organizations of Sverdlovsk region in the competitions of professional skills at different levels: from regional to international. The role of The Regional Centre of professional education coordination as an organizer of the competitive activity is also determined

Enhanced Strength and Ductility of AZ80 Magnesium Alloys by Spray Forming and ECAP Techniques

Fast spray forming technology followed by equal channel angular pressing (ECAP) was employed to obtain a specific microstructure: separated coarse magnesium grains surrounded by deformation networks. The deformation layer consisted of ultrafine grained magnesium with an average grain size of 0.6 μm and ellipsoidal shaped β-Mg17Al12 particles with a size of 200-300 nm and a volume fraction of 13%. Mechanical tensile test demonstrates the advantage of the specific structure: a yield strength of 235MPa combined with an elongation to failure of 14%

Nanocrystalline Ti Produced by Cryomilling and Consolidation by Severe Plastic Deformation

We report on a study of the nanocrystalline structure in Ti, which was produced by cryogenic milling followed by subsequent consolidation via severe plastic deformation using high pressure torsion. The mechanisms that are believed to be responsible for the formation of grains smaller than 40 nm are discussed and the influence of structural characteristics, such as nanometric grains and oxide nanoparticles, on Ti hardening is established

Microstructure, strength and fatigue of an ultrafine-grained Al-Cu-Mg alloy

© 2015, Institute of Problems of Mechanical Engineering. The impact of equal-channel angular pressing (ECAP) on the microstructure of an Al-Cu-Mg alloy has been investigated using transmission electron microscopy and electron backscatter diffraction. A combination of an ultrafine-grained and bimodal structure was observed in the alloy as a result of ECAP processing. The ECAP-processed samples after tensile tests and cyclic loads have demonstrated an enhanced ultimate tensile strength and fatigue endurance limit in comparison with the properties of the samples subjected to the standard T6 treatment

Structure and crystallographic texture in the Cu-Cr-Ag alloy subjected to severe plastic deformation

© 2014 Advanced Study Center Co. Ltd. In this paper the effect of severe plastic deformation (SPD) on the structure and crystallographic texture in the Cu-Cr-Ag copper alloy have been investigated. In ultrafine-grained (UFG) samples processed by high pressure torsion (HPT), equal channel angular pressing (ECAP) and ECAP-Conform (ECAP-C) the average size of grains and precipitates was determined. Experimental pole figures (PF) have been obtained and the relevant crystallographic texture was evaluated. The effect of dynamic aging in the Cu-Cr-Ag alloy leading to improvement of strength and electrical conductivity was observed

Effect of Grain Size on the Irradiation Response of Grade 91 Steel Subjected to Fe Ion Irradiation at 300 °C

Irradiation using Fe ion at 300 °C up to 100 dpa was carried out on three variants of Grade 91 (G91) steel samples with different grain size ranges: fine-grained (FG, with blocky grains of a few micrometers long and a few hundred nanometers wide), ultrafine-grained (UFG, grain size of ~ 400 nm) and nanocrystalline (NC, lath grains of ~ 200 nm long and ~ 80 nm wide). Electron microscopy investigations indicate that NC G91 exhibit higher resistance to irradiation-induced defect formation than FG and UFG G91. In addition, nano-indentation studies reveal that irradiation-induced hardening is significantly lower in NC G91 than that in FG and UFG G91. Effective mitigation of irradiation damage was achieved in NC G91 steel in the current irradiation condition. Graphical abstract: [Figure not available: see full text.

Comparison of the Thermal Stability in Equal-Channel-Angular-Pressed and High-Pressure-Torsion-Processed Fe–21Cr–5Al Alloy

Nanostructured Steels Are Expected to Have Enhanced Irradiation Tolerance and Improved Strength. However, They Suffer from Poor Microstructural Stability at Elevated Temperatures. in This Study, Fe–21Cr–5Al–0.026C (Wt%) Kanthal D (KD) Alloy Belonging to a Class of (FeCrAl) Alloys Considered for Accident-Tolerant Fuel Cladding in Light-Water Reactors is Nanostructured using Two Severe Plastic Deformation Techniques of Equal-Channel Angular Pressing (ECAP) and High-Pressure Torsion (HPT), and their Thermal Stability between 500–700 °C is Studied and Compared. ECAP KD is Found to Be Thermally Stable Up to 500 °C, Whereas HPT KD is Unstable at 500 °C. Microstructural Characterization Reveals that ECAP KD Undergoes Recovery at 550 °C and Recrystallization above 600 °C, While HPT KD Shows Continuous Grain Growth after Annealing above 500 °C. Enhanced Thermal Stability of ECAP KD is from Significant Fraction (\u3e50%) of Low-Angle Grain Boundaries (GBs) (Misorientation Angle 2–15°) Stabilizing the Microstructure Due to their Low Mobility. Small Grain Sizes, a High Fraction (\u3e80%) of High-Angle GBs (Misorientation Angle \u3e15°) and Accordingly a Large Amount of Stored GB Energy, serve as the Driving Force for HPT KD to Undergo Grain Growth Instead of Recrystallization Driven by Excess Stored Strain Energy

Results of the federal program of development of vocational education in the Sverdlovsk region in the area «Presonnel training for defense-industrial sector»

В статье представлены результаты реализации Федеральной целевой программы «подготовка кадров для оборонно-промышленного комплекса» в Свердловской области за два года. Приведены результаты маркетинговых исследований, показана модернизация материально-технической базы, методического оснащения учебного процесса, представлены результаты государственной итоговой аттестации, трудоустройство выпускников.The article presents the results of the implementation of the federal target-oriented program "Personnel training for the defense-industrial sector" in the Sverdlovsk region for two years. The results of market investigations are shown; the results of the State Final Examination, the modernization of material-technical base and employment of graduates are also described