ВПЛИВ УМОВ ФОРМУВАННЯ НА ТРИБОТЕХНІЧНІ ВЛАСТИВОСТІ БАГАТОШАРОВОГО ПОКРИТТЯ TiNbN/CrN

• Datum: 2025
• Hauptverfasser: Клименко, С. Ан., Манохін, А. С., Копєйкіна, М.Ю., Мельнійчук, Ю. О., Чумак, А. О., Клименко, С. А., Береснєв, В. М.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины 2025
• Schlagworte: вакуумно-дугове багатошарове покриття TiNbN/CrN; потенціал зсуву; тиск азоту; структура; механічні і трибологічні властивості
• Online Zugang: http://altis-ism.org.ua/index.php/ALTIS/article/view/423
• Назва журналу: Tooling materials science

The results of experimental studies of the influence of the formation conditions - the value of the shear potential Uz and nitrogen pressure on the tribological properties of TiNbN/CrN coatings are presented. It was found that the values of the shear potential Uz and nitrogen pressure have an extreme effect on the amount of nitrogen in the coating, which determines the hardness of the coating, the type of its crystal lattice, and the structural features of the coating. Coatings produced at high nitrogen pressure have a cubic crystal lattice and consist of single-phase layers. Depending on the values of the shear potential Uz and nitrogen pressure, the wear intensity of the resulting coatings varies, determined according to the «ball-disk» scheme – the coating obtained at high nitrogen pressure and at a shear potential of 100-150 V has the highest wear resistance. Critical loads characterizing the levels and mechanisms of coating failure during indenter scanning increase with an increase in the value of the shear potential during coating formation. During scratch-etching, the resulting coatings are erased without peeling off, which indicates a cohesive fracture mechanism, but with different intensity.