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Journal articles on the topic 'Powder blanks'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Ren, Xiaona, Yao Wang, Zhenfan Wang, et al. "Properties of Electrode Induction Melting Gas Atomization- and Vacuum Induction Melting Atomization-Produced Powders and Their As-HIPed Blanks." Materials 18, no. 3 (2025): 710. https://doi.org/10.3390/ma18030710.

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The main method for large-scaled preparing powder superalloys in the production process is inert gas atomization, particularly vacuum-induced gas atomization (VIGA). A novel technique called electrode-induced gas atomization (EIGA) with a crucible-free electrode was proposed to prepare non-inclusion superalloy powders. In this study, a Ni-based superalloy of FGH4096 powder was prepared using both the VIGA and EIGA methods, while blanks were prepared through direct hot isostatic pressing (as-HIPed) near-net-forming method. The particle size, morphology, microstructure, and mechanical properties

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2

McNichol, A. P., A. R. Gagnon, E. A. Osborne, D. L. Hutton, K. F. Von Reden, and R. J. Schneider. "Improvements in Procedural Blanks at NOSAMS: Reflections of Improvements in Sample Preparation and Accelerator Operation." Radiocarbon 37, no. 2 (1995): 683–91. http://dx.doi.org/10.1017/s0033822200031209.

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During the four years the Sample Preparation Laboratory (SPL) at the National Ocean Sciences Accelerator Mass Spectrometer (NOSAMS) Facilty has been in operation we have accumulated much data from which we can assess our progress. We evaluate our procedural blanks here and describe modifications in our procedures that have improved our analyses of older samples. In the SPL, we convert three distinct types of samples—seawater, CaCO3 and organic carbon—to CO2 prior to preparing graphite for the accelerator and have distinct procedural blanks for each procedure. Dissolved inorganic carbon (∑CO2)

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3

Gasanov, Badrudin, Nikolai Konko, and Sergey Baev. "Study of the kinetics of forming of spherical sliding bearing parts made of corrosion-resistant steels by die forging of porous blanks." Metal Working and Material Science 26, no. 2 (2024): 127–42. http://dx.doi.org/10.17212/1994-6309-2024-26.2-127-142.

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Introduction. Spherical powder sliding bearings are widely used in various branches of mechanical engineering. Therefore, the development of a promising method of production of spherical sliding bearing parts from powders of corrosion-resistant steels with specified properties is an urgent task. Purpose of work: is to study the kinetics of forming during cold die forging of spherical sliding bearing parts from stainless steel powder blanks, and to assess the effect of the chemical composition of lubricants and the design of the pressing tool on the structure and properties of the bearing outer

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4

Eremeeva, Zhanna V., Saeed Kamali, Artem I. Lizunov, and Vasiliy A. Ovchinnikov. "Production of Nanostructured Boron Carbide Ceramics for Industrial Applications." Key Engineering Materials 910 (February 15, 2022): 1075–80. http://dx.doi.org/10.4028/p-dd4bb5.

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The optimal modes (temperature, time, pressure force) of spark plasma sintering (SPS) and hot pressing of boron carbide obtained by various methods are determined. The initial powders were obtained from soot and amorphous boron by the mechanochemical synthesis method, by the high-temperature synthesis (SHS) method and by the carbon reduction method. The structure and the properties of SPS sintered and hot-pressed boron carbide blanks were determined. The highest value of the relative density was achieved during SPS sintering of blanks from B4C powders obtained by mechanosynthesis and SHS metho

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5

MALI, V. I., M. A. KORCHAGIN, A. G. ANISIMOV, et al. "ZIRCONIUM DIBORIDE WASTE RECYCLING BY GRINDING AND RECURRENT SPARK PLASMA SINTERING." Chemistry for Sustainable Development 31, no. 4 (2023): 415–21. http://dx.doi.org/10.15372/csd2023486.

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An economically viable and environmentally friendly method is proposed for recycling the wastes from electrical discharge cutting of the blanks obtained by the spark plasma sintering of a powdered composition based on zirconium diboride with the addition of silicon carbide, lanthanum and yttrium oxides. The wastes are ground in a flow-type centrifugal mill TsEM-7-1, and the product of milling is further consolidated by spark plasma sintering. The microstructure and phase composition of the sintered materials made from initial powder composition and the powder obtained by grinding the ceramic w

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6

Ageeva, E. V., L. S. Abolmasova, and A. S. Pereverzev. "Structure and properties of alloys based on electroerosive brass powder LS58-3 obtained in distilled water." Proceedings of the Southwest State University. Series: Engineering and Technology 14, no. 2 (2024): 45–54. http://dx.doi.org/10.21869/2223-1528-2024-14-2-45-54.

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The purpose of this work was to study the microstructure and physico-mechanical properties of alloy blanks based on electroerosive powder brass of the LS58-3 brand obtained in distilled water. Methods. To carry out the planned research, waste of the LS58-3 alloy was selected. Distilled water was used as the working fluid. In an experimental patented installation for producing powders, waste LS58-3 alloy was dispersed in distilled water with a load mass of 300 g. The following modes were used: capacitor capacity 45–65 μF; voltage at the electrodes from 150–200 V; pulse repetition rate 50–100 Hz

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7

Kießling, Ferdinand, Srecko Stopic, Sebahattin Gürmen, and Bernd Friedrich. "Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies." Metals 10, no. 6 (2020): 731. http://dx.doi.org/10.3390/met10060731.

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The treatment of industrial polycrystalline diamond (PCD) blanks in aqua regia at atmospheric pressure between 333 K and 353 K was performed via the ultrasound-assisted leaching process to investigate whether the influence of ultrasound is beneficial. Cobalt content in the solution and in the blanks was monitored as well as the effects of leaching temperature, solid-to-liquid ratio, and PCD blank size. The use of intermittent and permanent ultrasound helped reduce the leaching time and thus energy consumption by up to 50%. In all trials with ultrasound, higher temperature only has a slight eff

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8

Iatsyuk, I. V., O. N. Doronin, and I. S. Kuko. "SECONDARY PROCESSING OF CAST TUBE CATHODES WHEN OBTAINING A METAL POWDER COMPOSITION FOR THE GAS-THERMAL SPRAY OF COATINGS." Proceedings of VIAM, no. 2 (2021): 81–87. http://dx.doi.org/10.18577/2307-6046-2021-0-2-81-87.

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The paper presents the results of structural studies of metal-powder compositions (MPC) from the VSDP-3 alloy, as well as heat-resistant atmospheric-plasma powder coatings, developed at the FSUE «VIAM». As blanks for sputtering the MPC, standard charge blanks and exhausted resource cast tube cathodes for ion-plasma deposition were used. It was found that MPC obtained by sputtering cathodes and coatings deposited by sputtering these MPC are not inferior in properties to standard MPC and coatings. At the same time, the cost of such MPC and coatings can be 20–40% lower.

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9

Choi, Pyuck-Pa, Tala'at Al-Kassab, Young-Soon Kwon, Ji-Soon Kim, and Reiner Kirchheim. "Application of Focused Ion Beam to Atom Probe Tomography Specimen Preparation from Mechanically Alloyed Powders." Microscopy and Microanalysis 13, no. 5 (2007): 347–53. http://dx.doi.org/10.1017/s1431927607070717.

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Focused ion-beam milling has been applied to prepare needle-shaped atom probe tomography specimens from mechanically alloyed powders without the use of embedding media. The lift-out technique known from transmission electron microscopy specimen preparation was modified to cut micron-sized square cross-sectional blanks out of single powder particles. A sequence of rectangular cuts and annular milling showed the highest efficiency for sharpening the blanks to tips. First atom probe results on a Fe95Cu5 powder mechanically alloyed in a high-energy planetary ball mill for 20 h have been obtained.

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10

Baranov, D. A. "Investigation of the structure of heat-resistant alloys under direct laser cultivation." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 3 (September 14, 2023): 16–23. http://dx.doi.org/10.21122/1683-6065-2023-3-16-23.

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In this work, the following studies were carried out: the structure of the starting materials (metal‑powder composition) of heat‑resistant nickel alloys EP648 and VJ159; sphericity, fluidity and bulk density of powder particles from heat‑resistant nickel alloys EP648 and VJ159; elemental (chemical) composition of powder particles of heat‑resistant nickel alloys EP648 and VJ159; the effect of technological and energy parameters of laser radiation on defect formation (pore) in manufactured (grown) blanks (samples); structure formation of manufactured samples from heat‑resistant nickel alloys EP6

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11

Ul'shin, V. I., and K. L. Poznyak. "Spray formation of high-density alloy-steel powder blanks." Powder Metallurgy and Metal Ceramics 35, no. 9-10 (1996): 505–8. http://dx.doi.org/10.1007/bf01355966.

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12

Belyavin, K. E., D. V. Minko, and N. V. Reshnetikov. "A New Technology of Hardening Porous Materials of Titan Powders." Materials Science Forum 534-536 (January 2007): 613–16. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.613.

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A technology of hardening porous materials of titan powders has been elaborated. The technology is based on passing alternating current with duration of ~10-1…101 s through porous (35…40%) blanks made by method of Sintering by Electric Discharge (SED) by passing a pulse of current with duration of ~10-5…10-3 s. The influence of technological regimes of porous blanks treatment on their structure and properties is investigated. Geometry and dimension of contact necks between powder particles of obtained samples are evaluated. Variations of porosity and strengths as well as microstructure of poro

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13

Dorofeyev, V. Yu, E. N. Bessarabov, A. N. Sviridova, I. V. Ivanova, L. I. Svistun, and R. A. Vodolazhenko. "Structure and properties of hot-forged powder steel–bronze bimetal with SiC additives." Powder Metallurgy аnd Functional Coatings 18, no. 3 (2024): 16–27. http://dx.doi.org/10.17073/1997-308x-2024-3-16-27.

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One of the main problems in the production of bimetals is associated with the difference in the physico-mechanical and structural properties of the materials being joined. Both solid-phase and liquid-phase methods are used to obtain bimetals. The main technological task is to create conditions for the formation of a transition zone between the working layer and adhesively bound substrate. We analyzed the known methods for producing compact and powder bimetals (insert molding, diffusion welding in the solid phase, infiltration, hot isostatic pressing, etc.). The bonding strength of bimetal laye

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14

Kotov, S. A., R. A. Parshikov, and S. V. Ganin. "Research of forming and sintering processes of copper powder blanks for equal channel angular pressing." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 1 (March 12, 2022): 49–54. http://dx.doi.org/10.21122/1683-6065-2022-1-49-54.

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Copper-based powder materials have found their application in many industries. These include classical powder metallurgy, automotive and aviation industries, microelectronics, instrument engineering, and nanotechnology. In this paper, the processes of forming and sintering copper powders obtained by various methods are considered. The main part of the research was carried out on powders of the PMS-1 brand obtained by electrolysis. Four batches of samples (18 pieces each) were pressed at different pressures. Based on the results of the research, a molding mode was proposed, which should ensure

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15

В.И., МАЛИ, КОРЧАГИН М.А., АНИСИМОВ А.Г. та ін. "ПЕРЕРАБОТКА ОТХОДОВ ИЗ ДИБОРИДА ЦИРКОНИЯ МЕТОДОМ ИЗМЕЛЬЧЕНИЯ И ПОВТОРНОГО ИСКРОВОГО ПЛАЗМЕННОГО СПЕКАНИЯ". Химия в интересах устойчивого развития 31, № 4 (2023): 428–34. http://dx.doi.org/10.15372/khur2023486.

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Предложен экономичный и экологически безопасный способ переработки методом измельчения с помощью проточной центробежной мельницы ЦЭМ-7-1 отходов после электроэрозионной обрезки заготовок, полученных искровым плазменным спеканием порошковой композиции на основе диборида циркония c добавками карбида кремния, оксидов лантана и иттрия. Исследована микроструктура и фазовый состав спеченных заготовок, изготовленных из исходной порошковой композиции и из порошка, полученного после размола отходов керамики, остающихся после чистовой обработки готовых изделий. Показано, что для увеличения выхода измель

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16

Kirillov, A. V., and E. A. Bogachev. "Silicon nitride ceramics with sintering oxide additives obtained from organoyttriumoxanealumoxane." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 4 (November 23, 2022): 14–19. http://dx.doi.org/10.17073/1683-4518-2022-4-14-19.

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Sintered blanks for spherical bodies of rolling from silicon nitride ceramics were obtained using the addition of an yttrium-containing organoalumoxane ― element organic oligomer, soluble in traditional organic solvents and rolling in pyrolysis into an oxide aluminum-sintering additive in a given mass ratio Al2O3/Y2O3 = 3/1. Studies conducted using thermogravimetry, X-ray phase analysis, optical and electron scanning microscopy showed that the feature of the use of elementoxane instead of the sintering additives of aluminum and yttrium oxides powder is a uniform distribution of aluminum and yt

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17

Chigileychik, Serhii, Yurii Torba, Ruslan Kulykovskyi, Nataliia Shyrokobokova, and Oleksandr Chechet. "INFLUENCE OF ACTIVE GAS CONTENT IN POWDER ON MECHANICAL PROPERTIES OF WORKPIECE BLANKS PRODUCED BY PLASMA ADDITIVE TECHNOLOGIES." New Materials and Technologies in Metallurgy and Mechanical Engineering, no. 4 (February 3, 2025): 52–58. https://doi.org/10.15588/1607-6885-2024-4-5.

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Purpose. Analysis of the influence of powder quality (content of active gases) on the level of mechanical properties of workpieces produced by plasma additive technologies. Research methods. Chemical composion of the powders was determined in accordance with regulatory document. The presence of non-metallic inclusions and contaminants in the powders was determined visualy. To quantify the oxygen in the powders, the vacuum extraction method was used in accordance with ДСТУ ISO 4491-4:2016. Oxygen and nitrogen gas analyser TC 500 (company LECO). Before being loaded into the dosing unit, all powd

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18

Grigor’ev, S. N., A. M. Dmitriev, N. V. Korobova, N. S. Tolmachev, and M. D. Petrov. "The development of solving techniques of manufacturing high-density powder blanks." Journal of Machinery Manufacture and Reliability 45, no. 1 (2016): 44–50. http://dx.doi.org/10.3103/s1052618816010040.

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19

Dorofeev, Yu G., G. A. Dreev, and V. N. Mishchenko. "Characteristic hot-forging defects in porous powder blanks of stepped shape." Soviet Powder Metallurgy and Metal Ceramics 27, no. 9 (1988): 681–84. http://dx.doi.org/10.1007/bf00796220.

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20

BARSUKOV, V. G., E. T. VOROPAEVA, and V. V. VOROPAEV. "METHOD FOR CALCULATING THE POROSITY OF PRESSED BLANKS OF POWDER THERMOPLASTICS." Polymer materials and technologies 8, no. 3 (2022): 56–64. http://dx.doi.org/10.32864/polymmattech-2022-8-3-56-64.

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21

Spirin, A., Victor Ivanov, Alexandr Lipilin, et al. "Fabrication of Components for Solid Oxide Fuel Cells by Tape Casting and Magnetic Pulsed Compaction." Advances in Science and Technology 45 (October 2006): 1879–84. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1879.

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Fabrication of dense YSZ electrolytes and porous LSM cathodes in the shape of tubes using a radial magnetic pulsed compaction of multilayered tubular blanks of powder tapes has been investigated. The tapes were prepared with butyral resin binder. The multilayered blanks were compacted magnetically. Magnetic pressures of 0.2-0.3 GPa in amplitude, sintering temperatures as low as 1100-1300 °C (in air) with holding time of 20-540 min have been used. Cathode tubes of 0.2-1.0 mm thick exhibited the reproducible open porosity up to 45 %. YSZ electrolyte tubes with the wall of 100-450 microns thick h

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22

Barinov, V. Yu. "Obtaining a pseudo-alloy W – Cu." Physics and Chemistry of Materials Treatment 4 (2022): 72–75. http://dx.doi.org/10.30791/0015-3214-2022-4-72-75.

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The possibility of synthesizing a tungsten – copper pseudo-alloy using a highly exothermic combustion reaction of silicon in nitrogen as a heating source due to the heat released as a result of combustion, the blanks compressed from tungsten and copper powders (85 wt. % W + 15 wt. % Cu) were heated above the melting point of copper. Burning was investigated. The samples of the obtained pseudo-alloys had a relative density of 0.76. The additive to the initial charge is 0.35 wt. % of the Co powder allowed to increase the relative density to 0.86.

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23

Telyatnik, Inna. "RESEARCH OF SURFACE PLASTIC DEFORMATION UNDER HYDRO-IMPULSE INFLUENCE." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(120) (May 1, 2023): 110–19. http://dx.doi.org/10.37128/2520-6168-2023-1-13.

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Increasing requirements for modern machines necessitates the use of new equipment and the improvement of existing equipment. Methods and techniques aimed at improving its operational and quality characteristics. One of the areas of improvement is the method of surface plastic deformation, which qualitatively affects the overall reliability of the product. However, surface plastic deformation does not allow for the development of a schematic diagram and a general-purpose device that can be used to strengthen a wide range of agricultural machinery parts. Differences in the physical and mechanica

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24

Burlakov, I. A. "Production of Disc Blanks GTDP on the Automated Line ALRD-800." Izvestiya MGTU MAMI 2, no. 1 (2008): 164–66. http://dx.doi.org/10.17816/2074-0530-69672.

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The proposed work presents an outline of the jet engine disk isothermal rolling and the necessary equipment. The features of the disk rolling machine control system are reviewed. The paper also describes the capability of titanium and nickel perform rolling, including powder nickel-based alloy ЭП741НП.

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25

Lozhechnikov, E. B., G. V. Andronchik, G. I. Sikavin, et al. "Four-roll mill for rolling powder materials into blanks of complex shape." Soviet Powder Metallurgy and Metal Ceramics 30, no. 11 (1991): 979–82. http://dx.doi.org/10.1007/bf00794606.

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26

Egorov, M., R. Egorova, A. Atrohov, and V. Ekilik. "Influence of alloying components on diffusion and bonding processes in powder materials." Journal of Physics: Conference Series 2131, no. 4 (2021): 042024. http://dx.doi.org/10.1088/1742-6596/2131/4/042024.

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Abstract At present, powder materials are used in practically all branches of industry, from medicine to aerospace technology. This is a wide range of materials ranging from constructional and instrumental materials and ending with special-purpose materials and medical implants. Powder metallurgy methods are most often used where the manufacture of products with desired properties is impossible using traditional methods: casting, stamping, etc. The production of all these materials is based on such basic operations as: obtaining starting materials, molding from these materials blanks of a give

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27

Шашко, Ю. А., О. В. Кулик та А. Ф. Санін. "ВИКОРИСТАННЯ АДИТИВНИХ ТЕХНОЛОГІЙ ДЛЯ ОТРИМАННЯ ЗАГОТІВОК ДИСКІВ ТУРБІН ТУРБОНАСОСНИХ АГРЕГАТІВ". System design and analysis of aerospace technique characteristics 27, № 2 (2022): 169–76. http://dx.doi.org/10.15421/471937.

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This paper presents the results of research work, the main task of which was to assess the possibilities and prospects of using Direct Metal Laser Sintering - the technology of direct sintering of powder) DMLS for the manufacture of blanks for turbine turbine disk blades with blades (turbine rotor), as well as conducting analytical work to identify both advantages and disadvantages over other traditional methods.

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28

Тимофеев, А. В., В. Г. Костишин та Д. Н. Читанов. "Влияние технологии получения ферритизированного порошка на степень магнитной текстуры пластин гексаферритов BaFe-=SUB=-12-=/SUB=-O-=SUB=-19-=/SUB=- и SrFe-=SUB=-12-=/SUB=-O-=SUB=-19-=/SUB=-". Письма в журнал технической физики 45, № 8 (2019): 34. http://dx.doi.org/10.21883/pjtf.2019.08.47619.17706.

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The paper studies influence of the technology producing ferritized powder of barium and strontium hexaferrites on the degree of magnetic texture of plates based on them. It is shown that the use of chemical coprecipitation technology compared to ceramic technology allows to obtain hexaferrite plates with the same values of the magnetic field pressing of raw blanks, the degree of magnetic texture is 19 – 22 % higher.

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Ageev, E. V., S. V. Khardikov, E. A. Vorobyev, and A. A. Sysoev. "Shape and morphology of the particles surface of electroerosive powders of micro- and nanometric fractions, obtained from H17MYuA steel in kerosene." MATEC Web of Conferences 298 (2019): 00127. http://dx.doi.org/10.1051/matecconf/201929800127.

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One of the main directions of engineering technology development at present is the improvement of existing and the development of new waste-free, environmentally friendly, material-saving production processes. Powder metallurgy is a branch of technology, including the manufacture of powders from metals and their alloys and the preparation of blanks and products from them without melting the main component. In most cases, new materials are created in order to provide the optimal combination of product price and operational characteristics. Chromium is the most common alloying element. Steel all

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Kotov, Sergey A., Bogdan Valerevich Avramishin, and Evgenii Michalovich Fedorov. "Obtaining a Hard Alloy Powder from a Worn-Out Tools with a Subsequent Use for Pressing Rods." Key Engineering Materials 822 (September 2019): 270–76. http://dx.doi.org/10.4028/www.scientific.net/kem.822.270.

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The article presents the results of research on obtaining powder of hard alloy using various methods. The analysis of studies described in the literature. Currently, there are many ways to obtain powders from waste, but most of them are poorly applicable in practice in a particular plant. On the basis of the data obtained from the literature, a method of obtaining powder was selected, which can be used in an enterprise with the equipment available. Technological regimes were also selected, which included such operations as softening the workpieces, mechanical grinding, grinding the powder in a

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Akhmetov, A. S., and Z. V. Eremeeva. "INVESTIGATION OF STRUCTURE OF SINTERED BLANKS FROM POWDER MIXTURE OF R6M5K5 HIGH-SPEED STEEL CONTAINING DIFFUSION-ALLOYED POWDER." Metallurg, no. 3 (2022): 57–60. http://dx.doi.org/10.52351/00260827_2022_03_57.

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Welhan, J. A. "Methane and hydrogen in mid-ocean-ridge basalt glasses: analysis by vacuum crushing." Canadian Journal of Earth Sciences 25, no. 1 (1988): 38–48. http://dx.doi.org/10.1139/e88-004.

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A comparative study of vacuum crushing methods for analyzing reactive gases in basaltic glasses shows that ball milling is an efficient means of releasing occluded gases but that blank production represents a potentially serious problem that must be accounted for when determining reactive-gas compositions. Production of H2 and CH4 in a stainless-steel ball mill in the absence of rock material increases with length of crushing time. However, test results presented here indicate that blank levels are reduced during the actual crushing process by the presence of rock powder, which may act as a cu

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Mikhailov, A., Ye Shtefan, and O. Mikhailov. "Modeling of manufacturing processes of thin-walled bushings from porous blanks using direct extrusion and radial compaction." Uspihi materialoznavstva 2023, no. 7 (2023): 19–26. http://dx.doi.org/10.15407/materials2023.07.002.

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The deformation process of powder materials thin-walled bushings manufacture was investigated by computer modeling. Two shape formation bushings schemeswere considered (direct extrusion and radial compaction).A continuum approach was used to create a modeling method. The method is based on rheological models of porous body plastic deformation and the finite element method. The accepted material rheological model allows describing the deformation of both powder and porous blanks. It takes into account the different resistance of these materials in tension and compression. Modeling of the deform

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Yin, Xinyi, Ming He, Kejun Dong, Yijun Pang, Shaoyong Wu, and Shan Jiang. "Steps Toward Measurement of 135Cs with AMS at CIAE." Radiocarbon 59, no. 3 (2017): 967–71. http://dx.doi.org/10.1017/rdc.2017.47.

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Abstract135Cs with a half-life of T1/2=2.3×106 yr is an important nuclide in studies of the dispersal of nuclear material in the environment. Preliminary measurements using 133Cs as a proxy for the long-lived 135Cs, with accelerator mass spectrometry (AMS) have been developed at the China Institute of Atomic Energy (CIAE). In order to improve the sensitivity of 135Cs AMS measurement, a new conducting material, Fe powder, was used in the experiment. According to the present results, the background level that can be obtained with blanks was 135Ba/Cs~1.83×10–10 with the CIAE-AMS system. These mea

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Vasilev, A. I., P. V. Panin, S. V. Putyrskiy, and A. M. Rogalev. "INVESTIGATION OF HOT ISOSTATIC PRESSING AND HEAT TREATMENT EFFECT ON STRUCTURE AND MECHANICAL PROPERTIES OF 3D-PRINTED SAMPLES MADE FROM VT6-PS GRADE MATERIAL." Proceedings of VIAM, no. 7 (2021): 22–30. http://dx.doi.org/10.18577/2307-6046-2021-0-7-22-30.

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Presents the results of the investigation of the influence of hot isostatic pressing and heat treatment on the structure and mechanical properties during tension of synthesized workpieces obtained by selective laser alloying from a metal-powder composition of VT6 alloy. The blanks were subjected to heat treatment at various temperatures in the state after synthesis, as well after HIP. The influence of different heat treatment modes was assessed by the results of tensile tests and structural researches.

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36

Ivanov, D. A., A. I. Sitnikov, G. E. Val'yano, T. I. Borodina, and S. D. Shlyapin. "The Al₂O₃ porous ceramic's preparation due to the zonal densification during the sintering of the powder blanks out of the finely dispersed alumina powder PAP-2's combustion end products." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 9 (December 29, 2018): 28–34. http://dx.doi.org/10.17073/1683-4518-2018-9-28-34.

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The engineering aspects are regarded for the porous α-Al2O3 eramics' preparation under the zonal densifcation during the powder blanks sintering formed out of the fnely dispersed end products of the alumina powder PAP-2's ﬂake particles air combustion. It was demonstrated that the porous structure in the sintering material was forming by means of local pulloﬀ mechanism which had eﬀect at the agglomerated particle boundaries creating the open interagglomerate porous, as well as by the sealed intragranular porous system's arising. The obtained ceramics properties are the following: the density i

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37

Gasanov, B. G., N. A. Konko, and S. S. Baev. "The effect of the method for producing chromium-nickel stainless steel powders on the strain state and properties of the outer cage of a spherical hinge joint." Diagnostics, Resource and Mechanics of materials and structures, no. 5 (October 2024): 138–58. https://doi.org/10.17804/2410-9908.2024.5.138-158.

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The paper substantiates the relevance of studying powder metallurgy methods and efficiency of applying them to the production of spherical bearings of highly loaded spherical hinge joints. It proves that the force and work of deformation, as well as the kinetics of forming of the outer cage of a spherical hinge joint made of sintered corrosion-resistant chromium-nickel steels, are influenced by the chemical composition of powders and lubricants, the protective environment and the method of sintering, the microstructure and mechanical properties of the workpiece material. It is shown that the p

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Ageev, E. V., N. M. Khoriakova, and K. V. Sadova. "MORPHOLOGY AND ELEMENT COMPOSITION POWDER ALLOY POWDER VNZH-95, OBTAINED BY ELECTROEROSION DISPERSION IN KEROSIN." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 7(242) (July 29, 2020): 15–20. http://dx.doi.org/10.35211/1990-5297-2020-7-242-15-20.

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Residence permits pseudo-alloys are used for the manufacture of cylinder parts, bushings, complex-shaped blanks with curved surfaces: gyroscope rotors, inertial masses, erosion-resistant electrodes, funnel for cumulative charges, biological protection from gamma radiation. Recycling of tungsten pseudo-alloys residence permit is relevant and necessary due to the shortage of tungsten. A promising method of processing waste into fine powders is the method of electroerosive dispersion (EED) that we have chosen. The purpose of the work is to study the morphology and elemental composition of the pow

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Bukatin, T. N., D. Y. Karpenkov, V. V. Dushik, and D. V. Ten. "The influence of the fluoride process of tungsten deposition parameters on the properties of tungsten self-composites obtained by chemical vapor infiltration." Izvestiâ Akademii nauk SSSR. Seriâ fizičeskaâ 88, no. 5 (2024): 760–66. https://doi.org/10.31857/s0367676524050112.

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The influence of the parameters of the chemical vapor infiltration process of tungsten powder on the depth of its impregnation, mechanical properties and density of the obtained blanks is studied. It was found that the depth of infiltration depends on the rate of chemical vapor deposition of tungsten, and the maximum bend strength is achieved the sample, obtained at temperature of 450 °C and a gas pressure of 133 mbar. The method of chemical vapor infiltration is promising for the development of technology of additive manufacture of the items made of tungsten and composites based on it.

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Gabdrakhmanov, Azat, Lenar Shafigullin, Tansylu Gabdrakhmanova, and Azat Galiakbarov. "Study of the properties of metal powder received by plasma." MATEC Web of Conferences 298 (2019): 00050. http://dx.doi.org/10.1051/matecconf/201929800050.

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In this work, a new method for producing metal and ceramic powders by plasma spraying of rod blanks is proposed. A distinctive feature of this method is the use of a direct-acting plasmatron, where a bar-stock acts as one of the electrodes, and the cooling of the molten particles occurs place with a water screen. The water screen is not only in the lower part of the installation, but also it flows evenly from the walls, which gives a more efficient cooling of all molten particles, forming a regular spherical shape, and plasma flow. Water constantly circulates in a closed circuit, the heat is r

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Berezin, Ivan, Alexander Zalazinsky, and Denis Kryuchkov. "Analytical model of equal-channel angular pressing of titanium sponge." Metal Working and Material Science 25, no. 2 (2023): 17–31. http://dx.doi.org/10.17212/1994-6309-2023-25.2-17-31.

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Introduction. The use of equal-channel angular pressing (ECAP) of metal powder makes it possible to obtain practically non-porous blanks with high hardness, with a high level of accumulated deformation and with the formation of an ultra-fine-grained structure. A relevant issue for the study of the semi-continuous ECAP process remains a reliable assessment of the energy-power parameters of the process and the prediction of the porosity of compressed materials. This, in turn, is due to the need to develop sufficiently accurate, reliable and simple mathematical models for practical application. T

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42

Grigor’ev, A. M., M. S. Kuznetsov, D. S. Shepelev, E. M. Alekseev, and K. V. Grigorovich. "Optimization of production technologyof continuous cast rail steel for increasing its purity by non-metallic inclusions." Izvestiya. Ferrous Metallurgy 64, no. 5 (2021): 345–52. http://dx.doi.org/10.17073/0368-0797-2021-5-345-352.

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The purpose of the work was to examine the reasons for formation of non-deformable non-metallic inclusions in rail steel and ways to reduce the rejection of finished rails due to the defects revealed during ultrasonic testing. The study was conducted at the steelmaking plant of JSC “Ural Steel”. In the central laboratory of the combine, a chemical analysis of non-metallic inclusions was carried out in the samples of finished rails produced from blanks manufactured by JSC “Ural Steel” and rejected at the ultrasonic test unit during the rail production at the “Aktobe Rail and Section Works” LLP.

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Goncharova, Tatyana. "Peculiarities of particle splicing at interlayer boundaries of hot-formed powder materials." E3S Web of Conferences 515 (2024): 02020. http://dx.doi.org/10.1051/e3sconf/202451502020.

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Modern production of machine-building parts and building structures is directly related to the production of high-quality hot-formed powder materials. Powder metallurgy as a modern innovative technology, creating materials with unique physical properties, has such a significant advantage as environmental safety. The absence of aggressive and environmentally hazardous components in the technology makes the process of manufacturing powder steels harmless to the environment. The present scientific study deals with the given microstructures of hot-pressure treated powder materials. Residual porosi

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Pirohov, Dmytro, and Borys Vorontsov. "Prospects Of Use And Processing Of Titanium Blanks Obtained By xBeam 3D Metal Printing Technology." Technium: Romanian Journal of Applied Sciences and Technology 12 (August 8, 2023): 53–57. http://dx.doi.org/10.47577/technium.v12i.9368.

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The article presents the new range of additive technologies called xBeam 3D metal printing that allows the production of titanium alloy parts for the medicine, aeronautical and automotive industries. The new technology opens up essential challenges, such as identifying and analysing the optimal finishing machining strategies for this type of part. The article analyses the production and machining of TI6Al4V produced by Wire Arc. The research focuses on implementing optimal cutting modes to obtain the required surface quality. This article provides a better understanding of the machining of tit

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Nyafkin, A. N., D. V. Kosolapov, and E. I. Kurbatkina. "Influence of thermomechanical treatment on the formation of the structure in dispersed-reinforced aluminum alloy-based metal composite materials." Powder Metallurgy аnd Functional Coatings 17, no. 3 (2023): 22–29. http://dx.doi.org/10.17073/1997-308x-2023-3-22-29.

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The study explored various facets of the structure of dispersed-reinforced aluminum alloy-based metal composite material (MCM) under different modes of thermomechanical treatment. Replacing traditional structural materials with MCM provides manufacturers with an opportunity to achieve higher levels of engineering superiority. The ability to choose composition, modify primary component ratios, and employ a range of MCM manufacturing techniques allows for precise tuning of the material's strength, rigidity, temperature range, and other physical and mechanical properties. Two prevalent technologi

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46

Bubnenkov, B. B., A. S. Zharmukhambetov, I. A. Ivanov, et al. "Investigation of influence of technological parameters on the properties of SiC samples fabricated by selective laser sintering. Part 1." Powder Metallurgy аnd Functional Coatings 18, no. 3 (2024): 71–84. http://dx.doi.org/10.17073/1997-308x-2024-3-71-84.

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The paper describes experiments on selective laser sintering (SLS) of a high-temperature ceramic material – silicon carbide powder F320 – using the MeltMaster3D-160 SLS unit equipped with a fiber ytterbium laser with a peak power of 200 W. We investigated the sintering mechanism and the impact of technological parameters on the microstructure, phase composition, and density of the resulting 3D cubic samples. The technological properties of the initial powder were also investigated, including morphology, granulometric composition, bulk density, and flow rate. The powder morphology mainly consis

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de Moraes Tamura, Helena, Selauco Vurobi, Milene Yumi Maeda, José Deodoro Trani Capocchi, and Osvaldo Mitsuyuki Cintho. "Syntesis of Niobium Nitride Using Cryogenic Milling." Materials Science Forum 802 (December 2014): 46–50. http://dx.doi.org/10.4028/www.scientific.net/msf.802.46.

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In the present paper a preliminary study was performed on the influence of mechanical milling on the synthesis of niobium nitrade. The niobium metal powder sample, passing # 635 mesh sieve, was processed by mechanical milling in SPEX mill for 8 hours using a ball-to-powder ratio of 7:1 and a nitrogen atmosphere. The powder was annealed at different temperatures, 900 °C, 1000 °C, 1100 °C and 1200 °C for 1 hour in a hydrogen and argon atmosphere to study their crystallization, which then were formed into blanks for analysis of the compressibility curves. These samples were also subjected to X-ra

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48

Lobastov, М. М., D. O. Kuzivanov, I. Yu Kinzhagulov, and K. A. Konyashova. "ACOUSTIC EMISSION MONITORING OF DEFECT FORMATION DURING ADDITIVE MANUFACTURING OF METAL PRODUCTS." Kontrol'. Diagnostika, no. 315 (September 2024): 36–45. https://doi.org/10.14489/td.2024.09.pp.036-045.

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The paper presents the results of formation of acoustic emission (AE) signatures of processes occurring during direct laser melting. As part of the experimental study, samples of the powder alloy Inconel (EP648) was melting at different conditions with simultaneous registration of acoustic emission signals. Based on analysis of the parameters of registered signals, their characteristic distribution signatures were formed for defect-free and defective samples during direct laser melting. The paper provides a detailed analysis of informative parameters of AE signals with choice of their optimal

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Lozhechnikov, E. B., and A. V. Tolstik. "Effect of conditions of deformation of a powder during extrusion on process forces and properties of blanks." Soviet Powder Metallurgy and Metal Ceramics 29, no. 10 (1990): 776–78. http://dx.doi.org/10.1007/bf00793534.

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Vityaz, P. A., A. F. Ilyuschenko, and V. V. Savich. "Powder metallurgy in Belarus and global development trends." Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings), no. 1 (March 21, 2019): 98–106. http://dx.doi.org/10.17073/1997-308x-2019-1-98-106.

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The analysis of trends and prospects for the development of the industry on the materials of European and world congresses of powder metallurgy, publications in leading specialized foreign publications was carried out. The steady growth of the production of powder construction parts for the automotive industry, including using assembly technology during joint sintering, are noted in the developed countries. The production using MIM methods is constantly growing; micro MIM technology has emerged as a separate sub-industry, which allows manufacturing products with a mass of 0,1 g or less. HIP me

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