|
This article is cited in 1 scientific paper (total in 1 paper)
Physical science of materials
Modification of the structure of Ti–Al–Si–Cu–N gradient coatings by mechanical tests
S. V. Ovchinnikov Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Abstract:
The research of structural state at the indentation and scratch regions of the gradient coatings Ti–Al–Si–Cu–N was carried out with the use of dark field electron microscopy analysis method of the crystal lattice bending. It was found out that the strength properties of the substrate, which determine the degree of plastic relaxation of the applied load are significant for modifying the coating structure. The increase of the crystal lattice bending relative to undeformed state, the heterogeneity and anisotropy of its value relative to the point and axis of the load are found for the material under the indenter apex. The formation of the localized bands is shown, in which the increase of crystal sizes, decrease in the bending of the crystal lattice and residual local stresses were observed.
Keywords:
nanocrystalline coatings, electron microscopy, nanoindentation, scratch, crystal lattice bending.
Received: 18.06.2019 Revised: 18.06.2019 Accepted: 12.12.2019
Citation:
S. V. Ovchinnikov, “Modification of the structure of Ti–Al–Si–Cu–N gradient coatings by mechanical tests”, Zhurnal Tekhnicheskoi Fiziki, 90:5 (2020), 817–825; Tech. Phys., 65:5 (2020), 783–790
Linking options:
https://www.mathnet.ru/eng/jtf5315 https://www.mathnet.ru/eng/jtf/v90/i5/p817
|
Statistics & downloads: |
Abstract page: | 37 | Full-text PDF : | 28 |
|