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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 6/2012

01.06.2012

Effects of Severe Cold Rolling on Exfoliation Corrosion Behavior of Al-Zn-Mg-Cu-Cr Alloy

verfasst von: Lianghua Lin, Zhiyi Liu, Yao Li, Xiangnan Han, Xu Chen

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 6/2012

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Abstract

The exfoliation corrosion (EXCO) behavior of Al-Zn-Mg-Cu-Cr alloy after severe cold rolling was investigated by optical microscope, transmission electron microscope, and electrochemical technique. The results show that the EXCO resistance decreased with increasing cold rolling reduction because of the grain boundaries which were decorated with the continuously distributed particles. After the solution treatment, the samples with different reductions retained the fibrous grains, and the elongated grains accelerated the growth of the corrosion cracks according to crack propagation analysis. Furthermore, the increase of deformation enhanced the degree of recrystallization, while the number of corrosion cells increased greatly when in the electrolyte, which tended to reduce the resistance to EXCO.
Vorheriger Artikel Environmentally Assisted Cracking of Drill Pipes in Deep Drilling Oil and Natural Gas Wells
Nächster Artikel Metallurgical Analysis of Ball Bearing Seized During Operation

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Metadaten
Titel
Effects of Severe Cold Rolling on Exfoliation Corrosion Behavior of Al-Zn-Mg-Cu-Cr Alloy
verfasst von
Lianghua Lin
Zhiyi Liu
Yao Li
Xiangnan Han
Xu Chen
Publikationsdatum
01.06.2012
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 6/2012
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-011-9978-0

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