Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath
Zn-Co alloy coatings were produced on carbon steel, at room temperature, from citrate baths (0.100 mol L-1) containing [Zn2+]= [Co2+] = 0.05 mol L-1. Coatings with %m/m Co > %m/m Zn were observed under all deposition conditions, except for I = 10 A m-2. As the current density (I) was increased, 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)
2014-07-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000400019&tlng=en |
| _version_ | 1818719729986043904 |
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| author | Julyana Ribeiro Garcia Dalva Cristina Baptista do Lago Lilian Ferreira de Senna |
| author_facet | Julyana Ribeiro Garcia Dalva Cristina Baptista do Lago Lilian Ferreira de Senna |
| author_sort | Julyana Ribeiro Garcia |
| collection | DOAJ |
| description | Zn-Co alloy coatings were produced on carbon steel, at room temperature, from citrate baths (0.100 mol L-1) containing [Zn2+]= [Co2+] = 0.05 mol L-1. Coatings with %m/m Co > %m/m Zn were observed under all deposition conditions, except for I = 10 A m-2. As the current density (I) was increased, a significant decrease (p<0.05) in %m/m Zn was noted, and the highest value of % m/m Co was observed at 80 A m-2. The Co-rich coatings presented refined microstructure, with small grain sizes. The smallest Icorr of the studied substrate/coatings systems, 2.4 µA cm-2, was obtained at I = 10 A m-2. Under these conditions, the coatings contained ~ 30 % m/m Co and 70 % m/m Zn and only the γ-ZnCo phase was obtained. The Icorr found in the present work is smaller than those usually found in the literature for Zn-Co coatings with small Co content. |
| first_indexed | 2024-12-17T20:11:35Z |
| format | Article |
| id | doaj.art-f52093bbeb3646b5baf11514be243e54 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-17T20:11:35Z |
| publishDate | 2014-07-01 |
| 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-f52093bbeb3646b5baf11514be243e542022-12-21T21:34:13ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392014-07-0117494795710.1590/S1516-14392014005000096Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate BathJulyana Ribeiro Garcia0Dalva Cristina Baptista do Lago1Lilian Ferreira de Senna2Universidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroUniversidade do Estado do Rio de JaneiroZn-Co alloy coatings were produced on carbon steel, at room temperature, from citrate baths (0.100 mol L-1) containing [Zn2+]= [Co2+] = 0.05 mol L-1. Coatings with %m/m Co > %m/m Zn were observed under all deposition conditions, except for I = 10 A m-2. As the current density (I) was increased, a significant decrease (p<0.05) in %m/m Zn was noted, and the highest value of % m/m Co was observed at 80 A m-2. The Co-rich coatings presented refined microstructure, with small grain sizes. The smallest Icorr of the studied substrate/coatings systems, 2.4 µA cm-2, was obtained at I = 10 A m-2. Under these conditions, the coatings contained ~ 30 % m/m Co and 70 % m/m Zn and only the γ-ZnCo phase was obtained. The Icorr found in the present work is smaller than those usually found in the literature for Zn-Co coatings with small Co content.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000400019&tlng=enElectrodepositionZn-Co alloy coatingssodium citratecorrosion protection |
| spellingShingle | Julyana Ribeiro Garcia Dalva Cristina Baptista do Lago Lilian Ferreira de Senna Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath Materials Research Electrodeposition Zn-Co alloy coatings sodium citrate corrosion protection |
| title | Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath |
| title_full | Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath |
| title_fullStr | Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath |
| title_full_unstemmed | Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath |
| title_short | Electrodeposition of Cobalt Rich Zn-Co alloy Coatings from Citrate Bath |
| title_sort | electrodeposition of cobalt rich zn co alloy coatings from citrate bath |
| topic | Electrodeposition Zn-Co alloy coatings sodium citrate corrosion protection |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000400019&tlng=en |
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