Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements
A number of Al-, Mg- and Ti-base alloys were preconditioned by oxidation via Plasma-electrolytic oxidation (PEO) followed by the addition of Cr and Ni elements in the coating pores by chemical precipitation and a final stage of mechanical treatment. The overall effect was a combination of hardness a...
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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)
2014-12-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600017&tlng=en |
| _version_ | 1819005403219886080 |
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| author | Georgios S. E. Antipas |
| author_facet | Georgios S. E. Antipas |
| author_sort | Georgios S. E. Antipas |
| collection | DOAJ |
| description | A number of Al-, Mg- and Ti-base alloys were preconditioned by oxidation via Plasma-electrolytic oxidation (PEO) followed by the addition of Cr and Ni elements in the coating pores by chemical precipitation and a final stage of mechanical treatment. The overall effect was a combination of hardness and resistance to wear. PEO voltage level was found to be a factor decisive for the oxide layer thickness and level of porosity. In turn the latter two factors appeared to act upon the degree of hardening corundum to alumina fraction in the layer and the degree of Cr/Ni penetration into the oxide layer itself. The optimum condition of increased micro-hardness and high resistance to wear was achieved for an AlCu4Mg2 alloy of extended oxide layer thickness and intermediate levels of open porosity. Similarly good wear results were obtained for a Be60AlMg2 alloy of particularly low micro-hardness but of sufficiently high porosity in order to accommodate the Cr/Ni intake. |
| first_indexed | 2024-12-20T23:52:14Z |
| format | Article |
| id | doaj.art-a762e5b12a974455af6a3a944a1e0c2d |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T23:52:14Z |
| publishDate | 2014-12-01 |
| 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-a762e5b12a974455af6a3a944a1e0c2d2022-12-21T19:22:48ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392014-12-011761485148810.1590/1516-1439.211013Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elementsGeorgios S. E. Antipas0National Technical University of AthensA number of Al-, Mg- and Ti-base alloys were preconditioned by oxidation via Plasma-electrolytic oxidation (PEO) followed by the addition of Cr and Ni elements in the coating pores by chemical precipitation and a final stage of mechanical treatment. The overall effect was a combination of hardness and resistance to wear. PEO voltage level was found to be a factor decisive for the oxide layer thickness and level of porosity. In turn the latter two factors appeared to act upon the degree of hardening corundum to alumina fraction in the layer and the degree of Cr/Ni penetration into the oxide layer itself. The optimum condition of increased micro-hardness and high resistance to wear was achieved for an AlCu4Mg2 alloy of extended oxide layer thickness and intermediate levels of open porosity. Similarly good wear results were obtained for a Be60AlMg2 alloy of particularly low micro-hardness but of sufficiently high porosity in order to accommodate the Cr/Ni intake.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600017&tlng=enplasma-electrolytic oxidationnon-ferrous alloyssurface oxide layerchemical depositionwear resistivitymicro-hardness |
| spellingShingle | Georgios S. E. Antipas Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements Materials Research plasma-electrolytic oxidation non-ferrous alloys surface oxide layer chemical deposition wear resistivity micro-hardness |
| title | Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements |
| title_full | Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements |
| title_fullStr | Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements |
| title_full_unstemmed | Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements |
| title_short | Augmentation of wear-protective coatings for non-ferrous alloys by the addition of Cr and Ni elements |
| title_sort | augmentation of wear protective coatings for non ferrous alloys by the addition of cr and ni elements |
| topic | plasma-electrolytic oxidation non-ferrous alloys surface oxide layer chemical deposition wear resistivity micro-hardness |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600017&tlng=en |
| work_keys_str_mv | AT georgiosseantipas augmentationofwearprotectivecoatingsfornonferrousalloysbytheadditionofcrandnielements |