Дослідження процесів безводневого азотування в тліючому розряді
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Дата
2018
Автори
Скиба, М.Є.
Стечишин, М.С.
Олександренко, В.П.
Курской, В.С.
Мартинюк, А.В.
Skyba, M.Ye.
Stechyshyn, M.S.
Oleksandrenko, V.P.
Kurskoy, V.S.
Martynyuk, A.V.
Назва журналу
Номер ISSN
Назва тому
Видавець
Хмельницький національний університет
Анотація
У роботі наведена тематика науково-теоретичних і прикладних робіт, які проводяться в лабораторії Поділь-
ського наукового фізико - технологічного центру (ПНФТЦ) при Хмельницькому національному університеті. На ос-
нові проведених досліджень показана можливість значного розширення технологічних рамок безводневого азоту-
вання в тліючому розряді завдяки можливості контролю і регулюванню не лише режимними, але і енергетичними
параметрами процесу насичення поверхні азотом
The paper presents the topics of scientific and applied researches conducted in the laboratory of the Podilskyi scientific physical-technological centre (PSPTC) at Khmelnytskyi National University. A specific feature of these investigations is that they are based on the energy theory of non-hydrogen nitriding in glow discharge (NNGD) developed in the laboratory. The latter makes it possible to control and regulate not only the regime but also the energy parameters of NNGD which greatly expands the possibilities of the influence of the existing nitriding technologies on the physical - chemical characteristics of the surface layers of metals in order to achieve the necessary performance characteristics of the hardened surfaces of machine parts. The effect of NNGD with autonomous energy nitriding regimes (current density, voltage, discharge watt-hour rating) on the surface microhardness and its distribution over the depth of the nitrided layer, the phase composition, the thickness of the nitride zone and the diffusion layer, as well as the tribological characteristics of nitrided surfaces under friction without lubrication (dry friction) are investigated on steel 40X As a result of the studies, it was determined: 1. NNGD with autonomous saturation regimes allows to significantly reduce the energy consumption for nitriding; 2. The unification of independent and controlled energy and regime parameters of NNGD allows to significantly expand the technological capabilities of the nitriding process in order to achieve the physical-chemical characteristics of surfaces of machine parts and equipment specified by the operating conditions; 3. Further research, according to the authors, should be aimed at establishing relationships between volt-ampere characteristics, composition of the gas mixture and its pressure in the gas-discharge chamber.
The paper presents the topics of scientific and applied researches conducted in the laboratory of the Podilskyi scientific physical-technological centre (PSPTC) at Khmelnytskyi National University. A specific feature of these investigations is that they are based on the energy theory of non-hydrogen nitriding in glow discharge (NNGD) developed in the laboratory. The latter makes it possible to control and regulate not only the regime but also the energy parameters of NNGD which greatly expands the possibilities of the influence of the existing nitriding technologies on the physical - chemical characteristics of the surface layers of metals in order to achieve the necessary performance characteristics of the hardened surfaces of machine parts. The effect of NNGD with autonomous energy nitriding regimes (current density, voltage, discharge watt-hour rating) on the surface microhardness and its distribution over the depth of the nitrided layer, the phase composition, the thickness of the nitride zone and the diffusion layer, as well as the tribological characteristics of nitrided surfaces under friction without lubrication (dry friction) are investigated on steel 40X As a result of the studies, it was determined: 1. NNGD with autonomous saturation regimes allows to significantly reduce the energy consumption for nitriding; 2. The unification of independent and controlled energy and regime parameters of NNGD allows to significantly expand the technological capabilities of the nitriding process in order to achieve the physical-chemical characteristics of surfaces of machine parts and equipment specified by the operating conditions; 3. Further research, according to the authors, should be aimed at establishing relationships between volt-ampere characteristics, composition of the gas mixture and its pressure in the gas-discharge chamber.
Опис
Ключові слова
безводневе азотування в тліючому розряді (БАТР), фізико - хімічні властивості повер- невих шарів, зносостійкість, non-hydrogen nitriding in glow discharge (NNGD), physical and chemical properties of surface layers, wear resistance
Бібліографічний опис
Дослідження процесів безводневого азотування в тліючому розряді [Текст] / М. Є. Скиба, М. С. Стечишин, В. П. Олександренко [та ін.] // Проблеми трибології. – 2018. – № 2. – С. 6-16.