INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS
The relevance of the research is caused by the need to improve the already known methods of electroless coating deposition. To date, despite numerous studies and practical applications, the process of chemical nickel plating remains imperfect. The low nickel deposition rate, the high consumption of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2019-10-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
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| Online Access: | http://izvestiya.tpu.ru/archive/article/view/2317/2090 |
| _version_ | 1819085720218763264 |
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| author | Inna A. Rogova Aleksandr P. Ilyin Oleg I. Nalesnik Sergey V. Matrenin |
| author_facet | Inna A. Rogova Aleksandr P. Ilyin Oleg I. Nalesnik Sergey V. Matrenin |
| author_sort | Inna A. Rogova |
| collection | DOAJ |
| description | The relevance of the research is caused by the need to improve the already known methods of electroless coating deposition. To date, despite numerous studies and practical applications, the process of chemical nickel plating remains imperfect. The low nickel deposition rate, the high consumption of the solution components, and the complexity of the deposition do not contribute to the widespread use of chemical nickel plating. At the same time, chemically deposited coatings are significantly different from the electrochemical: they possess valuable properties. The presented technique of intensification due to the combination of nickel deposition processes by chemical and electrochemical methods is able to increase the deposition rate of the coatings, and also allows influencing their composition and mechanical properties. The main aim of the research is to increase the rate of electroless nickel plating by application of a negative electric potential on aluminium substrate, with a thin layer of chemically predeposited nickel to reduce the time of the process. Objects: nickel coatings on an aluminium substrate made of alloy grade D16T. Methods: potentiodynamic, scanning electron microscopy, energy dispersive analysis, microhardness, scratch test, profilometry. Results. Сo-deposition of electroless and electrochemical nickel on an aluminium substrate was carried out with the negative electric potential shift. The dependence of phosphorus content in the coatings on the surface stationary potential shift was determined. The physicochemical characteristics of the obtained coatings were studied. It was established that a small shift of the surface stationary potential to the cathode region allows obtaining nickel-phosphorus coatings containing a smaller amount of phosphorus, but superior in properties to an electroless coating. |
| first_indexed | 2024-12-21T21:08:50Z |
| format | Article |
| id | doaj.art-cfd536b3a12c424ea59b11271d7b1e95 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-12-21T21:08:50Z |
| publishDate | 2019-10-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-cfd536b3a12c424ea59b11271d7b1e952022-12-21T18:50:13ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302019-10-013301020921510.18799/24131830/2019/10/2317INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGSInna A. Rogova0Aleksandr P. Ilyin1Oleg I. Nalesnik2Sergey V. Matrenin3National Research Tomsk Polytechnic UniversityNational Research Tomsk Polytechnic UniversityNational Research Tomsk Polytechnic UniversityNational Research Tomsk Polytechnic UniversityThe relevance of the research is caused by the need to improve the already known methods of electroless coating deposition. To date, despite numerous studies and practical applications, the process of chemical nickel plating remains imperfect. The low nickel deposition rate, the high consumption of the solution components, and the complexity of the deposition do not contribute to the widespread use of chemical nickel plating. At the same time, chemically deposited coatings are significantly different from the electrochemical: they possess valuable properties. The presented technique of intensification due to the combination of nickel deposition processes by chemical and electrochemical methods is able to increase the deposition rate of the coatings, and also allows influencing their composition and mechanical properties. The main aim of the research is to increase the rate of electroless nickel plating by application of a negative electric potential on aluminium substrate, with a thin layer of chemically predeposited nickel to reduce the time of the process. Objects: nickel coatings on an aluminium substrate made of alloy grade D16T. Methods: potentiodynamic, scanning electron microscopy, energy dispersive analysis, microhardness, scratch test, profilometry. Results. Сo-deposition of electroless and electrochemical nickel on an aluminium substrate was carried out with the negative electric potential shift. The dependence of phosphorus content in the coatings on the surface stationary potential shift was determined. The physicochemical characteristics of the obtained coatings were studied. It was established that a small shift of the surface stationary potential to the cathode region allows obtaining nickel-phosphorus coatings containing a smaller amount of phosphorus, but superior in properties to an electroless coating.http://izvestiya.tpu.ru/archive/article/view/2317/2090shift potentialnickel deposition rateelectroless nickel platingaluminiumroughnesshardnessadhesion |
| spellingShingle | Inna A. Rogova Aleksandr P. Ilyin Oleg I. Nalesnik Sergey V. Matrenin INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS Известия Томского политехнического университета: Инжиниринг георесурсов shift potential nickel deposition rate electroless nickel plating aluminium roughness hardness adhesion |
| title | INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS |
| title_full | INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS |
| title_fullStr | INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS |
| title_full_unstemmed | INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS |
| title_short | INFLUENCE OF STATIONARY POTENTIAL SHIFT OF ALUMINIUM SURFACE ON PROPERTIES OF NICKEL-PHOSPHORUS COATINGS |
| title_sort | influence of stationary potential shift of aluminium surface on properties of nickel phosphorus coatings |
| topic | shift potential nickel deposition rate electroless nickel plating aluminium roughness hardness adhesion |
| url | http://izvestiya.tpu.ru/archive/article/view/2317/2090 |
| work_keys_str_mv | AT innaarogova influenceofstationarypotentialshiftofaluminiumsurfaceonpropertiesofnickelphosphoruscoatings AT aleksandrpilyin influenceofstationarypotentialshiftofaluminiumsurfaceonpropertiesofnickelphosphoruscoatings AT oleginalesnik influenceofstationarypotentialshiftofaluminiumsurfaceonpropertiesofnickelphosphoruscoatings AT sergeyvmatrenin influenceofstationarypotentialshiftofaluminiumsurfaceonpropertiesofnickelphosphoruscoatings |