Зносостійкість сталі 45 в корозійно-абразивному середовищі після іонного азотування
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Файли
Дата
2013
Автори
Гончар, В.А.
Каплун, П.В.
Gonchar, V.A.
Kaplun, P.V.
Назва журналу
Номер ISSN
Назва тому
Видавець
Хмельницький національний університет
Анотація
Представлено результати експериментальних досліджень властивостей азотованих шарів і їх
зносостійкості в абразивному середовищі зразків зі сталі 45 після іонного азотування в тліючому розряді.
Знайдені оптимальні режими іонного азотування за критеріями зносостійкості, твердості поверхні та товщини
азотованого шару.
Experimental study of the properties of the surface layer of steel 45 after ion nitriding among the mixture of nitrogen and argon in their different ratios for different technological regimes was conducted. Investigated thickness, hardness, wear resistance and phase composition of the nitrided layers. Studies were conducted on the durability of the machine mechanical friction at specific load of 0.5 MPa and slip speed 1.37 m/s in the environment model abrasive solution. On the basis of the plan of experiments we investigated the analytical properties depending on the technological parameters of the process of ion nitriding. Constructed graphic dependence of the nitrided layer thickness and hardness of the surface of the technological parameters of the process of ion nitriding. The kinetics of the process of the nitrided layers wear in the model abrasive solution was calculated. We conducted the comparison of the intensity of wear steel 45 after quenching and ion nitriding. An optimization study was done according of the properties of the nitrided layer by setting the maximum hardness of the surface, the thickness of the hardened layer and its durability. Optimum conditions of ion nitriding steel 45 were found for each of the studied characteristics. We established that the wear resistance of steel 45 after ion nitriding is 1,6 times higher compared to its durability after hardness.
Experimental study of the properties of the surface layer of steel 45 after ion nitriding among the mixture of nitrogen and argon in their different ratios for different technological regimes was conducted. Investigated thickness, hardness, wear resistance and phase composition of the nitrided layers. Studies were conducted on the durability of the machine mechanical friction at specific load of 0.5 MPa and slip speed 1.37 m/s in the environment model abrasive solution. On the basis of the plan of experiments we investigated the analytical properties depending on the technological parameters of the process of ion nitriding. Constructed graphic dependence of the nitrided layer thickness and hardness of the surface of the technological parameters of the process of ion nitriding. The kinetics of the process of the nitrided layers wear in the model abrasive solution was calculated. We conducted the comparison of the intensity of wear steel 45 after quenching and ion nitriding. An optimization study was done according of the properties of the nitrided layer by setting the maximum hardness of the surface, the thickness of the hardened layer and its durability. Optimum conditions of ion nitriding steel 45 were found for each of the studied characteristics. We established that the wear resistance of steel 45 after ion nitriding is 1,6 times higher compared to its durability after hardness.
Опис
Ключові слова
знос, азотування, екструдер, сталь, wear, nitriding, extruder, steel
Бібліографічний опис
Гончар, В. А. Зносостійкість сталі 45 в корозійно-абразивному середовищі після іонного азотування [Текст] / В. А. Гончар, П. В. Каплун // Вісник Хмельницького національного університету. Технічні науки. – 2013. – № 2. – С. 57-61.