Active Modification and Amorphisation of Materials by Low-Energy Ion Irradiation

Tereshko, I.; Khodyrev, V. I.; Tereshko, Valery; Lipsky, E.A.; Romanenko, Iu. V.

doi:10.1007/978-94-015-8459-3_41

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…1b after low-energy exposure to glow discharge plasma. It was found that the effect of a glow discharge plasma causes an increase in the dislocation density to a depth of 8.19 mm from the irradiation surface, and the structure corresponds to a deeply deformed state of the material [17]. Crystalline atomic structures can be classified as complex nonlinear systems.…”

Section: Resultsmentioning

confidence: 99%

Simulation of the Processing Process in a Glow Discharge Plasma Generator

Logvin

Yvarova

2021

EPJ Web Conf.

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A theory has been developed that explains the structure formation in a thin surface layer of a material after low-energy exposure to a glow discharge plasma. This makes it possible to design new methods, technologies and automated devices for the development of an automated technological environment for strengthening various types of tools from various materials. Based on the developed theory, a self-learning system with a developing database was created for monitoring all stages of processing in a glow discharge plasma generator. Any crystal structure can be classified as a complex nonlinear system. When studying the dynamic response of such systems to an external low-energy effect, it was shown that by the time when the nonlinear vibrations stop, the atoms of the crystal lattice are stabilized in new positions. Based on the purpose of the products to be processed in the glow discharge plasma generator, with taking into account their operating conditions, it is possible to increase their production life up to 2 times or more. These technologies should be used at the final stage of the production process because they do not lead to distortion of the shape and size of the working surfaces of products being manufactured. In this case, the residual stresses are redistributed in the surface layer of the material with the formation of an equal structure that improves the running-in conditions of mating parts of devices and mechanisms. For cutting and forming tools, the run-in stage is reduced to the stage of uniform wear.

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Section: Resultsmentioning

confidence: 99%

Simulation of the Processing Process in a Glow Discharge Plasma Generator

Logvin

Yvarova

2021

EPJ Web Conf.

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“…Считалось, что эффективная модификация материалов возможна только при высокой энергии бомбардирующих частиц и чем больше эта энергия, тем больше глубина структурированного слоя. Показано, что низкоэнергетическая бомбардировка ионами остаточных газов в тлеющем разряде (энергия ионов варьировалась в интервале 0,5-5 кэВ) образцов различных ме-таллов и сплавов приводит к повышению дислокационной плотности на глубину, многократно превышающую величину проективного пробега ионов, что описано как «дальнодействующий эффект» [1][2][3][4][5]. Фактически это почти объемная модификация.…”

Section: Introductionunclassified

Material Modification in Glow Discharge

Tereshko¹,

Tereshko²,

Tereshko³

et al. 2016

Bulletin of Bryansk State Technical University

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The development of new methods to improve physical and stressstrain properties of materials is an important contribution to the development of modern technologies and targeted control of their behavior. The optimum combination of stressstrain properties and electrical ones to improve performance attributes of materials is very important. The basic purpose of this work is the study of long-term effects in materials resistivity changes after treatment in a glow discharge. There are presented the results of measurements of a resistivity relative value in copper-graphite insertions after a radiation treatment in a glow discharge. The graphic dependences obtained show that in the course of two years in samples a long-lived state, a structure of irradiated composite material remains. It is a sign of that the improvement of performance attributes of insertions investigated bears longterm character. An anomalous temperature dependence of electric resistance after an irradiation treatment if a glow discharge was detected in technical copper samples. First of all this anomaly manifests itself in copper resis-tivity decrease after an irradiation treatment at different temperatures obtained that is contrary to the fact determined of the simultaneous increase of dislocations density in samples irradiated.

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