Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition
Abstract Nickel-cobalt/silicon carbide (Ni-Co/SiC) composite coatings were fabricated by supergravity field-enhanced electrodeposition. The surface morphology and the distribution of the SiC particles in the coatings were examined by scanning electron microscope and energy dispersive X-ray spectrome...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-08-01
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| Series: | Chinese Journal of Mechanical Engineering |
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| Online Access: | http://link.springer.com/article/10.1186/s10033-020-00478-8 |
| _version_ | 1818280191792775168 |
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| author | Xiaoyun Hu Ningsong Qu |
| author_facet | Xiaoyun Hu Ningsong Qu |
| author_sort | Xiaoyun Hu |
| collection | DOAJ |
| description | Abstract Nickel-cobalt/silicon carbide (Ni-Co/SiC) composite coatings were fabricated by supergravity field-enhanced electrodeposition. The surface morphology and the distribution of the SiC particles in the coatings were examined by scanning electron microscope and energy dispersive X-ray spectrometry. The preferred orientations of the coatings were measured by X-ray diffractometry. The wear resistance and microhardness were measured by a reciprocating tribometer and a microhardness instrument, respectively. The results revealed that the use of the supergravity field enhanced the smoothness of the as-deposited Ni-Co/SiC coatings, and the SiC nanoparticles were uniformly distributed in comparison with that for conventional electrodeposition. When the rotation speed of the cathode, which provided the supergravity field, was 800 r/min, the SiC content in the coating reached a maximum of 8.1 wt%, which was a much higher content than the 2.2 wt% value obtained under conventional electrodeposition. The highest coating microhardness of 680 HV was also observed at this rotation speed. In addition, the wear resistance of the as-prepared Ni-Co/SiC coatings exhibited improved performance relative to that prepared under normal gravity. A minimum wear weight loss of 1.4 mg together with an average friction coefficient of 0.13 were also realized at a rotation speed of 800 r/min, values which were much lower than those for normal gravity. |
| first_indexed | 2024-12-12T23:45:18Z |
| format | Article |
| id | doaj.art-c8a64e30ace74f9fb73fbeb72b8c22b0 |
| institution | Directory Open Access Journal |
| issn | 1000-9345 2192-8258 |
| language | English |
| last_indexed | 2024-12-12T23:45:18Z |
| publishDate | 2020-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chinese Journal of Mechanical Engineering |
| spelling | doaj.art-c8a64e30ace74f9fb73fbeb72b8c22b02022-12-22T00:06:53ZengSpringerOpenChinese Journal of Mechanical Engineering1000-93452192-82582020-08-0133111010.1186/s10033-020-00478-8Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced ElectrodepositionXiaoyun Hu0Ningsong Qu1Nanjing University of Aeronautics and AstronauticsNanjing University of Aeronautics and AstronauticsAbstract Nickel-cobalt/silicon carbide (Ni-Co/SiC) composite coatings were fabricated by supergravity field-enhanced electrodeposition. The surface morphology and the distribution of the SiC particles in the coatings were examined by scanning electron microscope and energy dispersive X-ray spectrometry. The preferred orientations of the coatings were measured by X-ray diffractometry. The wear resistance and microhardness were measured by a reciprocating tribometer and a microhardness instrument, respectively. The results revealed that the use of the supergravity field enhanced the smoothness of the as-deposited Ni-Co/SiC coatings, and the SiC nanoparticles were uniformly distributed in comparison with that for conventional electrodeposition. When the rotation speed of the cathode, which provided the supergravity field, was 800 r/min, the SiC content in the coating reached a maximum of 8.1 wt%, which was a much higher content than the 2.2 wt% value obtained under conventional electrodeposition. The highest coating microhardness of 680 HV was also observed at this rotation speed. In addition, the wear resistance of the as-prepared Ni-Co/SiC coatings exhibited improved performance relative to that prepared under normal gravity. A minimum wear weight loss of 1.4 mg together with an average friction coefficient of 0.13 were also realized at a rotation speed of 800 r/min, values which were much lower than those for normal gravity.http://link.springer.com/article/10.1186/s10033-020-00478-8Supergravity fieldElectrodepositionMicrohardnessWear resistance |
| spellingShingle | Xiaoyun Hu Ningsong Qu Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition Chinese Journal of Mechanical Engineering Supergravity field Electrodeposition Microhardness Wear resistance |
| title | Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition |
| title_full | Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition |
| title_fullStr | Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition |
| title_full_unstemmed | Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition |
| title_short | Preparation of Nickel-Cobalt/Carborundum Carbide Composite Coatings by Supergravity Field-Enhanced Electrodeposition |
| title_sort | preparation of nickel cobalt carborundum carbide composite coatings by supergravity field enhanced electrodeposition |
| topic | Supergravity field Electrodeposition Microhardness Wear resistance |
| url | http://link.springer.com/article/10.1186/s10033-020-00478-8 |
| work_keys_str_mv | AT xiaoyunhu preparationofnickelcobaltcarborundumcarbidecompositecoatingsbysupergravityfieldenhancedelectrodeposition AT ningsongqu preparationofnickelcobaltcarborundumcarbidecompositecoatingsbysupergravityfieldenhancedelectrodeposition |