The article discusses the method of conducting tribological studies at the limit modes of friction of nitrided and non-nitrided steels 20 and 45 in order to achieve a comparison of the results of laboratory tests with operational data. The relationship of structural phases in time is significantly influenced by the initial state of the surface and its physical and mechanical characteristics, pressure on the contact surface, sliding speed, and all these parameters for the limit mode of friction are closely related. Carrying out tests on the wear resistance of samples made of different materials and with significantly different characteristics of the surface layer at the same parameters of the test regime is impossible in most cases, since the obtained results are problematic to compare.
Досліджено вплив режимних (температура, склад та тиск газової суміші) і енергетичних характеристик (напруга, густина струму, питома потужність розряду) за безводневого азотування в тліючому розряді (БАТР) на структуру, фазовий склад азотованих шарів. Показано, що завдяки комбінації режимних та енергетичних параметрів БАТР можна досягнути фізико-хімічних показників азотованих шарів заданих умовами експлуатації. Ключові слова: безводневе азотування в тліючому розряді, фазовий склад, напруга, густина струму, питома потужність розряду.The influence of the regime (temperature, composition of a gas mixture and its pressure) and energy characteristics (voltage, current density, specific discharge power) under nonhydrogenated nitriding in a glow discharge (NHGD) on the structure, phase composition of the nitrided layers is investigated. It is shown that because of the combination of regime and energy parameters of the NHGD it is possible to reach the physical and chemical indicators for the nitrided layers assigned by the exploitation conditions.
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