Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment
One of the urgent problems in the field of mechanical engineering is the development of technology for improving the strength and performance properties of coating materials for critical parts of power plants [1]. Of great importance is the development of new methods of influencing the structure an...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Al-Farabi Kazakh National University
2022-06-01
|
| Series: | Physical Sciences and Technology |
| Online Access: | http://phst/index.php/journal/article/view/279 |
| _version_ | 1797645305219383296 |
|---|---|
| author | Assel Zhilkashinova Mazhin Skakov Almira Zhilkashinova Madi Abilev Nadezhda Prokhorenkova |
| author_facet | Assel Zhilkashinova Mazhin Skakov Almira Zhilkashinova Madi Abilev Nadezhda Prokhorenkova |
| author_sort | Assel Zhilkashinova |
| collection | DOAJ |
| description |
One of the urgent problems in the field of mechanical engineering is the development of technology for improving the strength and performance properties of coating materials for critical parts of power plants [1]. Of great importance is the development of new methods of influencing the structure and properties of coatings, and the complex use of existing developments, the optimal combination of which can create new opportunities for directed influence on the structure and properties of the resulting coatings [2, 3]. At the same time, the structural-phase state has a significant impact on the physical, mechanical and operational properties of coatings.
This article describes the results of studying the structural-phase state of composite Co-Cr-Al-Y coatings in the initial state and after thermal treatment, obtained because of using the developed magnetron method for applying multilayer coatings with a controlled concentration of constituent elements. According to the results of SEM measurements, it was revealed that unannealed coatings form dense coatings with a columnar structure. The results of transmission electron microscopy confirm the SEM and EDS measurements, and there are clear layer boundaries in the structure for each type of multilayer coating. A distinctive feature of the synthesized layers is the almost complete absence of a crystalline structure for all types of Co-Cr-Al-Y multilayer coatings, which is apparently due to the amorphous properties of cobalt and its tendency to form metallic glasses. The main process occurring during the heat treatment of the studied multilayer coatings is the formation of a spinel-type phase.
The obtained results of experimental studies give new, deeper ideas about the processes of formation of structural-phase states of composite coatings obtained by magnetron sputtering.
|
| first_indexed | 2024-03-11T14:44:27Z |
| format | Article |
| id | doaj.art-84eabbbc9b0e4dd0b1e97cfd3a91f783 |
| institution | Directory Open Access Journal |
| issn | 2409-6121 |
| language | English |
| last_indexed | 2024-03-11T14:44:27Z |
| publishDate | 2022-06-01 |
| publisher | Al-Farabi Kazakh National University |
| record_format | Article |
| series | Physical Sciences and Technology |
| spelling | doaj.art-84eabbbc9b0e4dd0b1e97cfd3a91f7832023-10-30T13:10:40ZengAl-Farabi Kazakh National UniversityPhysical Sciences and Technology2409-61212022-06-0191Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatmentAssel Zhilkashinova0Mazhin Skakov1Almira Zhilkashinova2Madi Abilev3Nadezhda Prokhorenkova4Sarsen Amanzholov East Kazakhstan UniversityNational Nuclear CenterSarsen Amanzholov East Kazakhstan UniversityAl-Farabi Kazakh National UniversityD. Serikbayev East Kazakhstan Technical University One of the urgent problems in the field of mechanical engineering is the development of technology for improving the strength and performance properties of coating materials for critical parts of power plants [1]. Of great importance is the development of new methods of influencing the structure and properties of coatings, and the complex use of existing developments, the optimal combination of which can create new opportunities for directed influence on the structure and properties of the resulting coatings [2, 3]. At the same time, the structural-phase state has a significant impact on the physical, mechanical and operational properties of coatings. This article describes the results of studying the structural-phase state of composite Co-Cr-Al-Y coatings in the initial state and after thermal treatment, obtained because of using the developed magnetron method for applying multilayer coatings with a controlled concentration of constituent elements. According to the results of SEM measurements, it was revealed that unannealed coatings form dense coatings with a columnar structure. The results of transmission electron microscopy confirm the SEM and EDS measurements, and there are clear layer boundaries in the structure for each type of multilayer coating. A distinctive feature of the synthesized layers is the almost complete absence of a crystalline structure for all types of Co-Cr-Al-Y multilayer coatings, which is apparently due to the amorphous properties of cobalt and its tendency to form metallic glasses. The main process occurring during the heat treatment of the studied multilayer coatings is the formation of a spinel-type phase. The obtained results of experimental studies give new, deeper ideas about the processes of formation of structural-phase states of composite coatings obtained by magnetron sputtering. http://phst/index.php/journal/article/view/279 |
| spellingShingle | Assel Zhilkashinova Mazhin Skakov Almira Zhilkashinova Madi Abilev Nadezhda Prokhorenkova Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment Physical Sciences and Technology |
| title | Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment |
| title_full | Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment |
| title_fullStr | Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment |
| title_full_unstemmed | Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment |
| title_short | Features of structural-phase states of Co-Cr-Al-Y composite coatings after heat treatment |
| title_sort | features of structural phase states of co cr al y composite coatings after heat treatment |
| url | http://phst/index.php/journal/article/view/279 |
| work_keys_str_mv | AT asselzhilkashinova featuresofstructuralphasestatesofcocralycompositecoatingsafterheattreatment AT mazhinskakov featuresofstructuralphasestatesofcocralycompositecoatingsafterheattreatment AT almirazhilkashinova featuresofstructuralphasestatesofcocralycompositecoatingsafterheattreatment AT madiabilev featuresofstructuralphasestatesofcocralycompositecoatingsafterheattreatment AT nadezhdaprokhorenkova featuresofstructuralphasestatesofcocralycompositecoatingsafterheattreatment |