INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD
It was studied the morphology of the WС coatings’ surfaces formed by the ion-plasma method on the substrates of БрАЖ9-4 tinless bronze and 12Х18Н9Т stainless steel. Initially, the substrate had the same roughness. The coatings were formed by spraying a lot of cathodes-targets made of BA brand tungst...
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| Format: | Article |
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National Aerospace University «Kharkiv Aviation Institute»
2018-12-01
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| Series: | Авіаційно-космічна техніка та технологія |
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| Online Access: | http://nti.khai.edu/ojs/index.php/aktt/article/view/357 |
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| author | Денис Витальевич Слюсарь Владимир Петрович Колесник Олег Николаевич Чугай Леонид Васильевич Литовченко Николай Петрович Степанушкин Сергей Леонидович Абашин Сергей Владимирович Олейник |
| author_facet | Денис Витальевич Слюсарь Владимир Петрович Колесник Олег Николаевич Чугай Леонид Васильевич Литовченко Николай Петрович Степанушкин Сергей Леонидович Абашин Сергей Владимирович Олейник |
| author_sort | Денис Витальевич Слюсарь |
| collection | DOAJ |
| description | It was studied the morphology of the WС coatings’ surfaces formed by the ion-plasma method on the substrates of БрАЖ9-4 tinless bronze and 12Х18Н9Т stainless steel. Initially, the substrate had the same roughness. The coatings were formed by spraying a lot of cathodes-targets made of BA brand tungsten and ОСЧ 7-3 spectral-pure graphite. The coating thickness was 8 ... 9 μm. The scanning electron microscope РЭМ 106 investigated the surface morphology of various areas of both the substrates and formed coatings. It is revealed the features of the morphology of the substrates and WC coatings’ surfaces determined by the composition of the substrate as well as the remoteness of the investigated area from its edge. It is noted that, regardless of the substrate material, the coatings consist of a multitude of grains, the sizes of which vary in the same limits of 0.5 ... 3 μm. However, in the case of a coating formed on a bronze substrate, grains with a size of 2 ... 3 μm quantitatively predominate. At the same time, the coatings formed on the steel substrate, the size of the predominant grains do not exceed 1 μm. At the edge of the bronze substrate, the grain size varies over a wider range of 0.5 ... 5 μm. The size of the predominant grains is 2 ... 5 μm. It was concluded that one of the main factors affecting the morphology of tungsten carbide coatings is the surface roughness of the substrate based on the analysis of the surface morphology of the substrates before and after their ionic cleaning. That roughness of the substrate arose during its ionic cleaning before forming the coating. Attention is drawn to the fact that the difference in the sputtering coefficients of the elements that form the substrate is of particular importance. This difference in coefficients predetermines the peculiarities of the surface morphology of the substrate after cleaning, which is confirmed by the literature data on the sputtering coefficients of the elements (Fe, Cr, Ni, Ti, Cu, Cu, and Fe) that are part of the applied bronze and steel grades. In addition, the concentration of the electric field at the edge of the substrate plays an important role in cleaning the substrate and coating formation |
| first_indexed | 2024-03-12T18:16:44Z |
| format | Article |
| id | doaj.art-f4f631d836694462a7c0f5b7ebfcc9c2 |
| institution | Directory Open Access Journal |
| issn | 1727-7337 2663-2217 |
| language | English |
| last_indexed | 2024-03-12T18:16:44Z |
| publishDate | 2018-12-01 |
| publisher | National Aerospace University «Kharkiv Aviation Institute» |
| record_format | Article |
| series | Авіаційно-космічна техніка та технологія |
| spelling | doaj.art-f4f631d836694462a7c0f5b7ebfcc9c22023-08-02T09:08:52ZengNational Aerospace University «Kharkiv Aviation Institute»Авіаційно-космічна техніка та технологія1727-73372663-22172018-12-0106768210.32620/aktt.2018.6.10398INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHODДенис Витальевич Слюсарь0Владимир Петрович Колесник1Олег Николаевич Чугай2Леонид Васильевич Литовченко3Николай Петрович Степанушкин4Сергей Леонидович Абашин5Сергей Владимирович Олейник6Национальный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковНациональный аэрокосмический университет им. Н. Е. Жуковского «Харьковский авиационный институт», ХарьковIt was studied the morphology of the WС coatings’ surfaces formed by the ion-plasma method on the substrates of БрАЖ9-4 tinless bronze and 12Х18Н9Т stainless steel. Initially, the substrate had the same roughness. The coatings were formed by spraying a lot of cathodes-targets made of BA brand tungsten and ОСЧ 7-3 spectral-pure graphite. The coating thickness was 8 ... 9 μm. The scanning electron microscope РЭМ 106 investigated the surface morphology of various areas of both the substrates and formed coatings. It is revealed the features of the morphology of the substrates and WC coatings’ surfaces determined by the composition of the substrate as well as the remoteness of the investigated area from its edge. It is noted that, regardless of the substrate material, the coatings consist of a multitude of grains, the sizes of which vary in the same limits of 0.5 ... 3 μm. However, in the case of a coating formed on a bronze substrate, grains with a size of 2 ... 3 μm quantitatively predominate. At the same time, the coatings formed on the steel substrate, the size of the predominant grains do not exceed 1 μm. At the edge of the bronze substrate, the grain size varies over a wider range of 0.5 ... 5 μm. The size of the predominant grains is 2 ... 5 μm. It was concluded that one of the main factors affecting the morphology of tungsten carbide coatings is the surface roughness of the substrate based on the analysis of the surface morphology of the substrates before and after their ionic cleaning. That roughness of the substrate arose during its ionic cleaning before forming the coating. Attention is drawn to the fact that the difference in the sputtering coefficients of the elements that form the substrate is of particular importance. This difference in coefficients predetermines the peculiarities of the surface morphology of the substrate after cleaning, which is confirmed by the literature data on the sputtering coefficients of the elements (Fe, Cr, Ni, Ti, Cu, Cu, and Fe) that are part of the applied bronze and steel grades. In addition, the concentration of the electric field at the edge of the substrate plays an important role in cleaning the substrate and coating formationhttp://nti.khai.edu/ojs/index.php/aktt/article/view/357износостойкие покрытиякарбид вольфрамаионно-плазменный методморфология поверхности |
| spellingShingle | Денис Витальевич Слюсарь Владимир Петрович Колесник Олег Николаевич Чугай Леонид Васильевич Литовченко Николай Петрович Степанушкин Сергей Леонидович Абашин Сергей Владимирович Олейник INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD Авіаційно-космічна техніка та технологія износостойкие покрытия карбид вольфрама ионно-плазменный метод морфология поверхности |
| title | INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD |
| title_full | INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD |
| title_fullStr | INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD |
| title_full_unstemmed | INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD |
| title_short | INFLUENCE OF DIFFERENT FACTORS ON THE MORPHOLOGY OF THE WC COATINGS’ SURFACES DEPOSITED BY THE ION-PLASMA METHOD |
| title_sort | influence of different factors on the morphology of the wc coatings surfaces deposited by the ion plasma method |
| topic | износостойкие покрытия карбид вольфрама ионно-плазменный метод морфология поверхности |
| url | http://nti.khai.edu/ojs/index.php/aktt/article/view/357 |
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