Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites
Abstract Ni-Co-Al2O3-MoS2 composite coatings were prepared on the surface of LY12 aluminum alloys by electrophoresis-electrodeposition with different MoS2 concentrations. The microstructure, morphologies and composition of Ni-Co-Al2O3-MoS2 composites were characterized by X-ray diffractometer (XRD)...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2020-10-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/pdf/mr/v23n5/1516-1439-mr-23-5-e20200296.pdf |
| _version_ | 1828138062497972224 |
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| author | Ya-gang Zhang Wan-chang Sun Min Ma Sha-sha Tian Yu-wan Liu Yan Xiao |
| author_facet | Ya-gang Zhang Wan-chang Sun Min Ma Sha-sha Tian Yu-wan Liu Yan Xiao |
| author_sort | Ya-gang Zhang |
| collection | DOAJ |
| description | Abstract Ni-Co-Al2O3-MoS2 composite coatings were prepared on the surface of LY12 aluminum alloys by electrophoresis-electrodeposition with different MoS2 concentrations. The microstructure, morphologies and composition of Ni-Co-Al2O3-MoS2 composites were characterized by X-ray diffractometer (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive spectroscope (EDS). The micro-indentation hardness as well as friction and tribological properties of the coatings were tested by micro-hardness tester and friction and wear tester separately. Results revealed that the composite coating fabricated at 1.0 g⋅L-1 MoS2 achieved dense structure, and the average thickness of the coating was 39.820 µm. The micro-indentation hardness of the composite coating was decreased from 578 HV to 465 HV with the increase of MoS2 concentration. Also, the composite coating synthesized at 1.0 g·L-1 MoS2 had the lowest friction coefficient and wear rate. |
| first_indexed | 2024-04-11T18:29:55Z |
| format | Article |
| id | doaj.art-8af5eeaccb8245d4999e52c3c17135bc |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T18:29:55Z |
| publishDate | 2020-10-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-8af5eeaccb8245d4999e52c3c17135bc2022-12-22T04:09:29ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392020-10-0123510.1590/1980-5373-mr-2020-0296Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 CompositesYa-gang Zhanghttps://orcid.org/0000-0002-4112-4945Wan-chang Sunhttps://orcid.org/0000-0003-2561-6381Min Mahttps://orcid.org/0000-0003-2475-052XSha-sha Tianhttps://orcid.org/0000-0003-1189-1331Yu-wan Liuhttps://orcid.org/0000-0001-9748-1768Yan Xiaohttps://orcid.org/0000-0001-5027-1667Abstract Ni-Co-Al2O3-MoS2 composite coatings were prepared on the surface of LY12 aluminum alloys by electrophoresis-electrodeposition with different MoS2 concentrations. The microstructure, morphologies and composition of Ni-Co-Al2O3-MoS2 composites were characterized by X-ray diffractometer (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive spectroscope (EDS). The micro-indentation hardness as well as friction and tribological properties of the coatings were tested by micro-hardness tester and friction and wear tester separately. Results revealed that the composite coating fabricated at 1.0 g⋅L-1 MoS2 achieved dense structure, and the average thickness of the coating was 39.820 µm. The micro-indentation hardness of the composite coating was decreased from 578 HV to 465 HV with the increase of MoS2 concentration. Also, the composite coating synthesized at 1.0 g·L-1 MoS2 had the lowest friction coefficient and wear rate.http://www.scielo.br/pdf/mr/v23n5/1516-1439-mr-23-5-e20200296.pdfNi-Co matrixMolybdenum sulfideAluminaMicrostructureAnti-friction characteristics |
| spellingShingle | Ya-gang Zhang Wan-chang Sun Min Ma Sha-sha Tian Yu-wan Liu Yan Xiao Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites Materials Research Ni-Co matrix Molybdenum sulfide Alumina Microstructure Anti-friction characteristics |
| title | Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites |
| title_full | Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites |
| title_fullStr | Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites |
| title_full_unstemmed | Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites |
| title_short | Effect of MoS2 Concentration on Microstructure and Tribological Behavior of Electrophoretic-Electrodeposited Ni-Co-Al2O3-MoS2 Composites |
| title_sort | effect of mos2 concentration on microstructure and tribological behavior of electrophoretic electrodeposited ni co al2o3 mos2 composites |
| topic | Ni-Co matrix Molybdenum sulfide Alumina Microstructure Anti-friction characteristics |
| url | http://www.scielo.br/pdf/mr/v23n5/1516-1439-mr-23-5-e20200296.pdf |
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