Effect of hydrogen charging on the stability of SAE 10B22 steel surface in alkaline solutions

Modiano, S.; Carreno, J. A.; Fugivara, Cecilio Sadao; Benedetti, Assis Vicente; Mattos, O. R.

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/25442

Title:

Effect of hydrogen charging on the stability of SAE 10B22 steel surface in alkaline solutions

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)
Universidade Federal do Rio de Janeiro (UFRJ)

ISSN:

0013-4686

Abstract:

The influence of hydrogen charging into a quenched and tempered boron steel membrane electrode (SAE 10B22) was studied using borate buffer (pH 8.4) and NaOH solutions (pH 12.7), with or without the addition of 0.01 M EDTA. At the hydrogen input side, hydrogen charging influenced cyclic voltammograms increasing the anodic charge of iron(II) hydroxide formation, and decreasing the donor density of passive films. These results suggest that the hydrogen ingress caused instability of metallic surface, increasing the surface area activity. (C) 2005 Elsevier Ltd. All rights reserved.

Issue Date:

1-Nov-2005

Citation:

Electrochimica Acta. Oxford: Pergamon-Elsevier B.V., v. 51, n. 4, p. 641-648, 2005.

Time Duration:

641-648

Publisher:

Elsevier B.V.

Keywords:

boron-alloyed steel
hydrogen charging
Mott-Shottky plots
cyclic voltammetry
EIS

Source:

http://dx.doi.org/10.1016/j.electacta.2005.05.022

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/25442

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