scholarly journals MULTICOMPONENT FeCoCrAlTiCuMo COATING CREATED BY ATMOSPHERIC PLASMA METALLIZATION WITH MULTIPLE REFLOW

2022 ◽  
Vol 1 (1) ◽  
pp. 41-48
Author(s):  
Anvar Kadirmetov ◽  
Dmitrii Popov ◽  
Stepan Agarkov
Keyword(s):  
Solid Solution ◽  
Phase Composition ◽  
Plasma Spraying ◽  
Single Phase ◽  
Atmospheric Plasma ◽  
Ratio Of Components

The microstructure and phase composition of the coating obtained by plasma spraying of FeCoCrAlTiCuMo powder in an equiatomic ratio of components have been investigated. The results showed the possibility of creating a multicomponent single-phase solid solution by plasma spraying and the expediency of studying it.

PROSPECTS FOR THE USE OF HIGH-ENTROPY ALLOYS FOR RESTORING MACHINE PARTS BY ATMOSPHERIC PLASMA DEPOSITION

2021 ◽  
Vol 72 (1) ◽  
pp. 20-27
Author(s):  
A.M. KADIRMETOV ◽  
◽  
D.A. POPOV ◽  
E.V. SNYATKOV ◽  
◽  
...  
Keyword(s):  
Solid Solution ◽  
Single Phase ◽  
Plasma Deposition ◽  
Atmospheric Plasma ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Plasma Sputtering ◽  
Machine Parts ◽  
Metal Materials ◽  
Ratio Of Components

A brief analysis of the most common methods for producing multicomponent alloys, including high-entropy alloys (HES), is presented in terms of their use as an alternative to coatings made of traditional structural metal materials. Preliminary studies of the microstructure and phase compo-sition of the coating obtained by plasma deposition of FeCoCrAlTiCuMo powder in the equiatom-ic ratio of components are presented. The results of the research showed the possibility of obtain-ing a multicomponent single-phase solid solution by plasma sputtering and indicated the feasibil-ity of its further study.

scholarly journals A Study on the Microstructural Characterization and Phase Compositions of Thermally Sprayed Al2O3-TiO2 Coatings Obtained from Powders and Water-Based Suspensions

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2638 ◽  
Author(s):  
Monika Michalak ◽  
Filofteia-Laura Toma ◽  
Leszek Latka ◽  
Pawel Sokolowski ◽  
Maria Barbosa ◽  
...  
Keyword(s):  
Phase Composition ◽  
Plasma Spraying ◽  
Microstructural Characterization ◽  
Atmospheric Plasma ◽  
Coating Morphology ◽  
Liquid Feedstock ◽  
Α Al2o3 ◽  
Titania Coatings ◽  
Thermal Spray Processes ◽  
Oxygen Fuel

In this work, the alumina (Al2O3) and alumina-titania coatings with different contents of TiO2, i.e., Al2O3 + 13 wt.% TiO2 and Al2O3 + 40 wt.% TiO2, were studied. The coatings were produced by means of powder and liquid feedstock thermal spray processes, namely atmospheric plasma spraying (APS), suspension plasma spraying (SPS) and suspension high-velocity oxygen fuel spraying (S-HVOF). The aim of the study was to investigate the influence of spray feedstocks characteristics and spray processes on the coating morphology, microstructure and phase composition. The results revealed that the microstructural features were clearly related both to the spray processes and chemical composition of feedstocks. In terms of phase composition, in Al2O3 (AT0) and Al2O3 + 13 wt.% TiO2 (AT13) coatings, the decrease in α-Al2O3, which partially transformed into γ-Al2O3, was the dominant change. The increased content of TiO2 to 40 wt.% (AT40) involved also an increase in phases related to the binary system Al2O3-TiO2 (Al2TiO5 and Al2−xTi1+xO5). The obtained results confirmed that desired α-Al2O3 or α-Al2O3, together with rutile-TiO2 phases, may be preserved more easily in alumina-titania coatings sprayed by liquid feedstocks.

scholarly journals Investigation of a multicomponent FeCoCrAlTiCuMo alloy coating applied by a combined process based on atmospheric plasma metallization

2020 ◽  
Vol 329 ◽  
pp. 02005
Author(s):  
Anvar Kadyrmetov ◽  
Dmitri Popov ◽  
Yevgeny Snyatkov
Keyword(s):  
Single Phase ◽  
Plasma Deposition ◽  
Alloy Coating ◽  
Atmospheric Plasma ◽  
High Entropy Alloys ◽  
Combined Process ◽  
High Entropy ◽  
Plasma Sputtering ◽  
Metal Materials ◽  
Ratio Of Components

A brief analysis of the most common methods for producing multicomponent alloys, including high-entropy alloys (HES), is presented in terms of their use as an alternative to coatings made of traditional structural metal materials. Preliminary studies of the microstructure and phase composition of the coating obtained by plasma deposition of FeCoCrAlTiCuMo powder in the equiatomic ratio of components are presented . The results of the research showed the possibility of obtaining a multicomponent single-phase solid solution by plasma sputtering and indicated the feasibility of its further study.

Microstructure of Atmospheric Plasma Sprayed (Al,Cr)2O3-TiO2 Coatings from Blends

2021 ◽  
Author(s):  
Maximilian Grimm ◽  
Rico Drehmann ◽  
Thomas Lampke ◽  
Susan Conze ◽  
Lutz-Michael Berger
Keyword(s):  
Solid Solution ◽  
Plasma Spraying ◽  
Chromium Content ◽  
Defect Density ◽  
Deposition Efficiency ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Tio2 Content ◽  
Tio2 Coatings ◽  
Plasma Sprayed

Abstract This study investigates the microstructure and hardness of coatings produced by atmospheric plasma spraying using a commercial (Al,Cr)2O3 solid solution (ss) powder blended with various amounts of TiO2. The microstructures were analyzed using SEM, EDS, and XRD measurements. It was shown that blending with TiO2 reduces porosity and defect density while increasing deposition efficiency and microhardness. Small amounts of Ti in ss (Al,Cr)2O3 splats were detected in coatings prepared from blends with higher TiO2 content. Variations in aluminum and chromium content were also observed.

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