Architecture and construction
At the present stage of development of Russian society, sustainable development of not only urban but also rural settlements in the system of regional planning is becoming increasingly relevant. Such development together with the solution of social problems of the rural population are one of the main conditions for the economic and social well-being of the regions of the Kemerovo Region and the country as a whole.
Metallurgy and Materials Science
The properties of materials and plastic deformation usually can be modified when it is exposed to a specific field. The common external field is composed of electric field, magnetic field, and ultrasonic field, as well as combinations, etc. For example, electropulsing, as an instantaneous high-energy input method, has been applied for enhancement of the plasticity of metallic materials. It not only can reduce the deformation resistance, but also can reduce a large number of defects to improve the surface quality of metals, which is especially applicable to the materials that are difficult to deform. In the early 1960’s, a number of investigations have shown that except electronic properties, mechanical properties such as the flow stress, creep rate and stress relaxation also undergo a change, a decrease in the flow stress and an increase in the creep rate and stress relaxation, occurring upon going from the normal to the superconducting state.
At present, some metallic materials cannot be used in industry to produce products by pressure treatment due to their low plasticity or complete absence of it. Such materials include hypereutectic silumins. The first works on the deformation of such silumins appeared relatively recently - at the end of the 20th century, although back in the 1930s S.M. Voronov established the possibility of pressure treatment of alloys containing up to 20%. In the last few decades, works have appeared devoted to various types of plastic deformation of high-silicon silumins. Thus, in works, the relationship between the chemical composition of hypereutectic silumins and the resource of plasticity and with the energy-force and thermal-velocity parameters of hot pressing and rolling processes carried out in various ways is shown. In works devoted to the technologies of manufacturing blanks and engine pistons by pressure treatment from alloyed hypereutectic silumins, the results were obtained under industrial conditions. However, the number of works carried out on this topic in the field of hypereutectic silumins is insufficient. In addition, it is necessary to take into account the presence of hydrogen in aluminum alloys (the volume of which is 60 - 90% of the total volume of gases), which is capable of interacting with the metal during its deformation. The information provided in the literature is mainly fragmentary and, in the overwhelming majority, does not take into account the relationship of hydrogen content with the structure and mechanical properties during deformation of silumins.
Aviation and space industry is one of the most high-tech sectors of the economy, the development of which is impossible without the development of new materials and the introduction of technologies for their production. To ensure the competitiveness of domestic products, it is necessary to create and use materials with high specific properties and low density.
At present, in the world metallurgy, the bulk of rail grade steel is smelted in oxygen converters. In particular, oxygen-converter rail steel is produced in the USA, Japan, Austria, France, Italy, and Poland. It is known about industrial steel production in electric arc furnaces in Canada, however, the plant is currently closed.
Mining and Geotechnology
Fundamental work in the field of geology and geomechanics has shown that under conditions of constantly increasing complexity of mining and geological conditions of underground coal mining in the rock mass around the workings with increasing depth, not only does stress increase, but there is also an increase in their concentration in the vicinity of heterogeneities of various natures: fractures, solid inclusions, folding nodes, etc. This circumstance undoubtedly creates certain difficulties in ensuring the operability of workings for the entire period of operation.
Chemistry and chemical technology
In domestic and foreign practice, for the creation of thin metal films in the development of integrated circuits, a turn has been outlined from the use of individual metal materials to alloys based on high-purity metals containing two or more alloying components. Such a turn is quite natural, since when using pure metals as a conductor material, a number of technological and operational deviations are possible, which can be eliminated using the microalloying process. However, a number of problems arise on the way to using microalloying additives, ignorance and neglect of which can lead to negative results.
In domestic and foreign practice, for the creation of thin metal films in the development of integrated circuits, a turn has been outlined from the use of individual metal materials to alloys based on high-purity metals containing two or more alloying components. Such a turn is quite natural, since when using pure metals as a conductor material, a number of technological and operational deviations are possible, which can be eliminated using the microalloying process. However, a number of problems arise on the way to using microalloying additives, ignorance and neglect of which can lead to negative results
Iron is always present in aluminum, as it is the predominant impurity of technical aluminum and the main impurity of pure aluminum. It gets into aluminum when using steel equipment during melting and casting, a significant part - from the raw material for the production of aluminum - alumina.
Ecology and rational use of natural resources
At the end of the 19th and beginning of the 20th centuries, environmental problems of national significance emerged in Russia: intensive deforestation in the European part of the country, increased soil erosion in the steppe regions, predatory hunting of game animals, etc. They were caused by a sharp acceleration of economic development caused by the abolition of serfdom and the reforms of the early 20th century, accompanied by the resettlement of the population, the development of industry and transport, which required a large amount of energy and fossil resources.
Iron ore beneficiation waste is formed during wet magnetic separation (WMS) and dry magnetic separation (DMS) of pre-crushed rocks. The magnetic part of the ore is fed to agglomeration and then used in the metallurgical industry, the mineral part is delivered by hydrotransport to dumps, which are surrounded by a dam. Water drains from the dump into a channel constructed around it. The water suspension located in the channel is called the slurry part. In the dump, after drying, the waste (tailings) have a fine-grained composition. Dewatered tailings are fine sand with a fineness modulus of 0.64 - 1.7. The presence of silt clay impurities is 5 - 8% (determined by the method of B.I. Rudkovsky).
Economy and Management
The concept of sustainable development arose in response to large-scale environmental problems that emerged in the second half of the 20th century as a result of active negative anthropogenic impact on the environment. The impossibility of constant economic growth led to a large-scale dilemma in the search for ways to move forward, which were based on two opposing approaches: focus on growth or development. And if the first approach is aimed at constant expansion, which is impossible due to the limited availability of natural resources, the second approach was aimed at limiting current consumption in order to preserve resources for future generations.
Responses, Reviews, Biographies
On November 10, 2017, the rector of the Siberian State Industrial University (SibGIU), honored worker of higher education of the Russian Federation, honored metallurgist, honored worker of higher professional education of the Russian Federation, doctor of technical sciences, professor Evgeny Valentinovich Protopopov turns 60.
On November 26, 2017, the editorial board member Viktor Evgenievich Gromov turns 70. He is a well-known metal physicist in Russia and abroad, Honored Scientist of the Russian Federation, Honorary Metallurgist of the Russian Federation, member of the Interstate Council on Physics of Strength and Plasticity of Materials, member of the Scientific Council of the Russian Academy of Sciences on Condensed Matter Physics, Doctor of Physical and Mathematical Sciences, Professor, Head of the Department of Natural Sciences named after Professor V.M. Finkel of the Siberian State Industrial University. Viktor Evgenievich Gromov is registered in the Federal Register of Experts in the Scientific and Technical Sphere of the Ministry of Education and Science and the Russian Academy of Sciences, he is a member of the editorial boards of four journals from the HAC list.
ISSN 2307-1710 (Online)