Open AccessWear resistance of adaptive arc-PVD Ti-Al-Mo-Ni-N coatings under impact loading and hydroabrasive wear
Author(s) -
В. С. Сергевнин,
И. В. Блинков,
А. О. Волхонский,
N. I. Smirnov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1799/1/012029
Subject(s) - materials science , coating , brittleness , delamination (geology) , substrate (aquarium) , composite material , arc (geometry) , deposition (geology) , wear resistance , metallurgy , paleontology , biology , subduction , tectonics , geology , oceanography , geometry , mathematics , sediment
The behavior of Ti-Al-Mo-Ni-N coatings obtained by arc-PVD deposition under conditions of impact loading and hydroabrasive wear is studied. Nanostructured coatings samples with a thickness of 4 µm with a modulation period of 30 nm and hardness of 45 GPa were obtained. Under impact loading, the coating performs a protective function up to 10 5 loading cycles of 250 N without opening the substrate, and during hydroabrasive tests, after 3 hours of exposure to a flow at a speed of 8.5 m/s, there is a spot wear on the coating surface, opening minor segments oft the substrate area. It is shown that the introduction of Ni into the Ti-Al-Mo-N system leads to the appearance of coating failure by brittle mechanism with delamination and opening of the substrate under significant loads in the case of impact and hydroabrasive wear.