Local Electrochemical Investigation of Single Grains of Polycrystalline Cu-16%Zn-8%Al Alloy
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Data
2011-11-01
Autores
Barragan, Jose T. C. [UNESP]
Blanco, Matildes [UNESP]
Barelli, Nilso [UNESP]
Della Noce, Rodrigo [UNESP]
Fugivara, Cecilio Sadao [UNESP]
Fernandez, Javier
Benedetti, Assis Vicente [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Soc Brasileira Quimica
Resumo
Local electrochemical studies of single grains of a polycrystalline Cu-16%Zn-8%Al alloy were investigated in borate buffer solution (pH 8.4) by means of microelectrochemical technique. The grain orientations, which were determined by the Laue back-reflection method, were predominantly close to [110] direction, suggesting that the sample was texturized. The open circuit potential measurements showed that the lower steady state potential was observed for the grain which has the highest number of steps on the alloy surface. The cyclic voltammetry experiments suggested that the orientation of Cup follows the substrate one in the Cu-Zn-Al alloy, while CuO grows independently.
Descrição
Palavras-chave
Cu-Zn-Al alloys, shape memory alloys, single grains, borate buffer, microelectrochemical cell
Como citar
Journal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 22, n. 11, p. 2108-2114, 2011.