Modification of the T15K6 hard alloy with high-power pulsed ion beams and compression plasma fluxes

Углов, В.В.; Ремнев, Г. Е.; Kuleshov, A.K.; Асташинский, В. М.; Saltymakov, M. S.

doi:10.3103/s1067821213040159

Cited by 9 publications

(3 citation statements)

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“…The further increase of frequency decreases the powdering. It is obvious that it is possible to increase the quantitative process performance by increasing the frequency of a pulse generator, but this increase is not infinite and limited by the time of charging and discharging of discharge capacitors and speed of charge and discharge thyristor switches [4]. It can be concluded that the mass of a resulting copper powder is in a direct proportional dependence of pulse energy (an energy of discharge capacitors).…”

Section: Experimental Results and Discationsmentioning

confidence: 99%

“…The method of production and a metal nature determine chemical, physical and technological properties of a resulting metal powder. Often properties of a powder of the same metal vary significantly depending on the method of production [1][2][3][4][5]. The powders, which are identical in a chemical composition, can have different physical characteristics and greatly differ in technological properties, which cause the changes of conditions of the transformation of a powder into goods and influence its properties.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Copper Electroerosion Nanopowders from Waste of Aquatic Medium and its Validation by Physicochemical Methods

Агеев

Avilova

Horyakova

2015

AMM

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Section: Experimental Results and Discationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of Copper Electroerosion Nanopowders from Waste of Aquatic Medium and its Validation by Physicochemical Methods

Агеев

Avilova

Horyakova

2015

AMM

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“…Powder metallurgy occupies a significant place in the creation of perspective modern materials having a high strength, heat resistance, hardness, wear resistance, low density, special magnetic and optical characteristics, and the like. The properties of powder materials are determined by the structure and composition, which in turn depend on the chemical composition, the technology of production and subsequent processing through mechanical, thermal, chemical, physical and other combined effects [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Microscopic analysis of electroerozyon chrome-containing powders

Агеев

Altukhov

Щербаков

et al. 2018

J. Fundam and Appl Sci.

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The method of electro-erosive dispersion (EED) is characterized by relatively low energy costs and ecological purity of the process and allows to obtain powders from wastes of production and consumption. Nevertheless, the wide use of the method of electro-erosive dispersion is hampered by the lack of reference material for optimizing the powder formation regimes and the properties of the obtained copper powders. For wide use of this method, extensive theoretical and experimental studies are required. The purpose of this work is to study their shape and condition of the surface of powders, obtained by electro-erosive dispersion of chromium-containing waste. By the method of scanning electron microscopy (SEM) on the Nova NanoSEM 450 device particles of powders, obtained by electro-erosive dispersion of chromium-containing waste, were investigated. It was found that the shape of the powder particles is due to the way, in which the material is ejected from the well in the EED process. It can be seen, that particles having a regular spherical or elliptical shape prevail in a powder. They are obtained by crystallization of molten material (liquid phase). The particles, formed during the crystallization of the boiling material (vapor phase), have an irregular shape, the size of an order of magnitude smaller, than the particles, formed from the liquid phase, and usually agglomerate with each other and on the surface of other particles. In the EES process, such particles are most susceptible to chemical and phase changes.

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