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Electrochemical investigation on the hydrogen permeation behavior of 7075-T6 Al alloy and its influence on stress corrosion cracking

Electrochemical investigation on the hydrogen permeation behavior of 7075-T6 Al alloy and its... The hydrogen permeation behavior and stress corrosion cracking (SCC) susceptibility of precharged 7075-T6 Al alloy were investigated in this paper. Devanthan–Stachurski (D-S) cell tests were used to measure the apparent hydrogen diffusivity and hydrogen permeation current density of specimens immersed in 3.5wt% NaCl solution. Electrochemical experiment results show that the SCC susceptibility is low during anodic polarization. Both corrosion pits and hydrogen-induced cracking are evident in scanning electron microscope images after the specimens have been charging for 24 h. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Minerals, Metallurgy, and Materials Springer Journals

Electrochemical investigation on the hydrogen permeation behavior of 7075-T6 Al alloy and its influence on stress corrosion cracking

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References (48)

Publisher
Springer Journals
Copyright
Copyright © 2015 by University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg
Subject
Material Science; Materials Science, general; Metallic Materials; Characterization and Evaluation of Materials; Ceramics, Glass, Composites, Natural Methods; Surfaces and Interfaces, Thin Films; Tribology, Corrosion and Coatings
ISSN
1674-4799
eISSN
1869-103X
DOI
10.1007/s12613-015-1128-5
Publisher site
See Article on Publisher Site

Abstract

The hydrogen permeation behavior and stress corrosion cracking (SCC) susceptibility of precharged 7075-T6 Al alloy were investigated in this paper. Devanthan–Stachurski (D-S) cell tests were used to measure the apparent hydrogen diffusivity and hydrogen permeation current density of specimens immersed in 3.5wt% NaCl solution. Electrochemical experiment results show that the SCC susceptibility is low during anodic polarization. Both corrosion pits and hydrogen-induced cracking are evident in scanning electron microscope images after the specimens have been charging for 24 h.

Journal

International Journal of Minerals, Metallurgy, and MaterialsSpringer Journals

Published: Jul 9, 2015

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