7 research outputs found
Structural-phase and Strained State of Vacuum-ARC Mo-N Coatings
The effect of substrate bias on the structural-phase and elastic stress-strained state during the formation
of vacuum-arc deposited nanostructural coatings of the MoβN system has been studied. An increase
in the bias potential leads to (i) predominant [111] orientation of the growing molybdenum nitride
crystals with a NaCl-type cubic lattice (Ξ³-Mo2N phase) and (ii) the appearance of a second phase with a
body-centered cubic crystal lattice that is characteristic of pure molybdenum. The elastically strained
(stressed) state of the coating is determined not only by the conditions of deposition, but also by the mechanical
properties of a substrate. In order to provide for formation of coatings in a high-elastic-strained
(stressed) state, it is necessary to deposit coatings onto substrates with high elastic modulus, which prevent
metal flow at the interface.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3480
Stucture and mechanical characteristics of vacuum arc TiN coatings deposited with high-voltage high frequency pulses on the substrate
The Influence of Thickness of the Layers on Structural-Phase and Strained State of Multiperiod Nanolayer Ti/TiN Coatings
The influence of condition of vacuum-arc multi-layer TiN/Ti coatings on their phase composition, structure,
stress state and mechanical properties has been studied. The regularities of the phase composition,
structural state of stress, hardness with dependence on the magnitude of the negative bias applied to the
substrate during the deposition and the thickness of the Ti and TiN layers in a multilayer coating were obtained.
The analysis of the causes of observed changes, based on the mechanism of formation of surface
layers of vacuum-arc coatings in the condition of implantation processes stimulated by applying a negative
bias to the substrate was held.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3481
Effect of Wear of Tool Cutting Edge on Detail Surface Layer Deformation and Parameters of Vibro-Acoustic Signals
Effect of wear of tool cutting edge on detail surface layer deformation and parameters of vibro-acoustic signals
This paper studies the computing possibilities of estimating the deformation of the surface layer in machining of details with cutting tools of different levels of wear. The calculation results were experimentally compared with the data obtained by the results of a grid distortion analysis in cutting. Results of how deformation intensity evaluation affects the parameters of vibroacoustic signal have also been presented. Β© 2016 Trans Tech Publications, Switzerland
Effect of wear of tool cutting edge on detail surface layer deformation and parameters of vibro-acoustic signals
This paper studies the computing possibilities of estimating the deformation of the surface layer in machining of details with cutting tools of different levels of wear. The calculation results were experimentally compared with the data obtained by the results of a grid distortion analysis in cutting. Results of how deformation intensity evaluation affects the parameters of vibroacoustic signal have also been presented. Β© 2016 Trans Tech Publications, Switzerland