Formation of structural parameters and mechanical properties of multi-element coatings based on niobium nitride under different deposition conditions

2021 ◽  
pp. 67-72
Author(s):  
V.P. Tabakov ◽  
A.V. Chikhranov ◽  
Ya.A. Dolzhenko
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Chemical Composition ◽  
Deposition Temperature ◽  
Chemical Elements ◽  
Structural Parameters ◽  
Niobium Nitride ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Deposition Conditions

The results of the dependence of the chemical composition of coatings based on niobium nitride on the layout of the installation are presented. The effect of the chemical elements content in coatings based on niobium nitride on the phase composition, structural parameters and mechanical properties is determined. The effect of the deposition temperature of coatings on the mechanical properties of wear-resistant coatings is studied.

scholarly journals Influence of deposition conditions on structure parameters and mechanical properties of multi-element coatings based on niobium nitride

2019 ◽  
Vol 298 ◽  
pp. 00085
Author(s):  
Vladimir Tabakov ◽  
Aleksey Chikhranov ◽  
Yana Dolzhenko
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Niobium Nitride ◽  
Condensation Temperature ◽  
Structure Parameters ◽  
Deposition Conditions

The paper presents the results of studies of the influence of the deposition conditions, coatings NbTiZrN, NbTiAlN on structure parameters and mechanical properties. It is shown that the changes of these parameters depend on the composition of coatings. It was found that the condensation temperature affects the phase composition of the coating. Data obtained can be used when choosing functional layers of multi-element coatings.

Analysis of Wear-Resistant Materials of Mixer - Pneumosuperchargers Blades Operating under Conditions of Abrasive Wear

2021 ◽  
Vol 316 ◽  
pp. 893-898
Author(s):  
Natalya Gabelchenko ◽  
Artem Belov ◽  
Artem Kravchenko ◽  
Oleg Kryuchkov
Keyword(s):  
Mechanical Properties ◽  
Weight Loss ◽  
Wear Resistance ◽  
Chemical Composition ◽  
Abrasive Wear ◽  
Abrasive Medium ◽  
Wear Resistant ◽  
Comparative Tests ◽  
Before And After ◽  
110G13l Steel

We conducted comparative tests of the wear resistance of metals operating under abrasive conditions. Samples were cut from the working parts of mixer-pneumosuperchargers. The chemical composition and mechanical properties were determined. To compare samples under abrasive wear conditions, we designed and assembled a carousel installation. The principle of its operation is based on mixing the abrasive medium by the samples being studied with a given speed. Wear resistance was evaluated by weight loss by samples after several test cycles. To determine changes in the structure of the metal during abrasive wear, metallographic studies of the samples were carried out before and after the tests. It is shown that the best complex of service and mechanical properties is possessed by 110G13L steel.

Conceptual Approach to Development, Structure Formation and Hardening Micro-Alloyed by Steels for the Metallurgical Tool

2020 ◽  
Vol 299 ◽  
pp. 658-663
Author(s):  
S.E. Krylova ◽  
Sergey V. Gladkovskii ◽  
E.V. Romashkov
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Chemical Composition ◽  
Structure Formation ◽  
Structural Parameters ◽  
Structural Transformations ◽  
Conceptual Approach ◽  
Phase And Structural Transformations ◽  
Technological Cycle ◽  
Development Structure

The scientific bases for the development of rational compositions and methods for hardening a large-sized metallurgical tool from micro-alloyed steels are stated. Based on the generalization of the experimental data, the regularities of phase and structural transformations at various stages of the technological cycle are revealed; the relationships between structural parameters, chemical composition and mechanical properties have been studied and described.

Structure and Properties Enhancement in High-Speed Steels upon Primary Solidification of a Melt

2008 ◽  
Vol 144 ◽  
pp. 267-272
Author(s):  
Alexander S. Chaus
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Chemical Elements ◽  
Structural Parameters ◽  
Structure Refinement ◽  
Structure And Properties ◽  
Theoretical Evaluation ◽  
Surface Active ◽  
The Impact ◽  
Toughness Enhancement

In order to exhibit good all-round performance the impact toughness enhancement of cast high-speed steels (HSS) is obligatorily needed. In general, different methods are used commercially to achieve cast structure refinement and, as a consequence, their properties are improved. Introduction into the melt of inoculants particles or surface-active additions is among most beneficial. However, the effect of modifying additions in cast HSS has been studied insufficiently. For this reason the theoretical evaluation and experimental confirmation of the modifying and refining effects of 23 chemical elements in HSS have been carried out. The relationships between the structural parameters and mechanical properties in the M2 and T30 HSS have been established.

scholarly journals Механизмы возникновения напряжений в тонких пленках и покрытиях

2020 ◽  
Vol 90 (12) ◽  
pp. 1971
Author(s):  
А.Р. Шугуров ◽  
А.В. Панин
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Chemical Composition ◽  
Phase Transformations ◽  
Stress Generation ◽  
Amorphous Films ◽  
Misfit Stress ◽  
Crystal Lattices ◽  
Generation Mechanisms ◽  
Deposition Conditions

The paper considers current conceptions of generation of mechanical stresses in epitaxial, polycrystalline and amorphous films during their growth and under different external actions. The mechanism of stress generation in geteroepitaxial films due to misfit in crystal lattices of the film and substrate is described. The relation between arising of the misfit stress in heterostructures and variation of their growth mode is shown. The mechanisms of generation of compressive and tensile stresses in polycrystalline films caused by nucleation and coalescence of islands at the beginning of their growth are considered. Different aspects of evolution of intrinsic stresses in continuous films are discussed in dependence of their deposition conditions, chemical composition, microstructure and mechanical properties. Special attention is given to consideration of generation mechanisms of intrinsic stresses in thin films concerned with formation of pint defects, incorporation of impurities and phase transformations during deposition. Factors leading to arising extrinsic stresses in thin films during their storage and operation are described in details.

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