In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomography

F Eckermann; T Suter; PJ Uggowitzer; A Afseth; Alison Davenport; Brian Connolly; MH Larsen; F De Carlo; P Schmutz

doi:10.1016/j.corsci.2008.09.015

In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomography

F Eckermann, T Suter, PJ Uggowitzer, A Afseth, Alison Davenport, Brian Connolly, MH Larsen, F De Carlo, P Schmutz

Metallurgy and Materials

Research output: Contribution to journal › Article

46 Citations (Scopus)

Abstract

Susceptibility to localized corrosion of AlMgSi (AA6016 and AA6111) alloys in certain aggressive environments is high. In this study, synchrotron X-ray microtomography was used to monitor non-destructively corrosion processes within bulk materials. In the selected aggressive solutions, surface-deformed layers showed high localized corrosion susceptibility, but are more stable than the bulk of the alloy during corrosion propagation. In addition, exfoliation-like attack was observed as a transition from intergranular attack. This directed corrosion is not related to grain or crystallographic structure. Finally, intermetallic particles dissolution inside the materials after contact with aggressive solution of the intergranular corrosion path was evidenced. (C) 2008 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	3455-3466
Number of pages	12
Journal	Corrosion Science
Volume	50
Issue number	12
DOIs	https://doi.org/10.1016/j.corsci.2008.09.015
Publication status	Published - 1 Dec 2008

Keywords

Aluminium
X-ray microtomography
Exfoliation corrosion
Acid corrosion

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10.1016/j.corsci.2008.09.015

Platform : Fracture, Fatigue and Durability of Advanced Alloys and Composites for High Performance Applications
Bowen, P., Connolly, B., Davenport, A. & Knott, J.
Engineering & Physical Science Research Council
1/09/05 → 28/02/11
Project: Research Councils

Cite this

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title = "In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomography",

abstract = "Susceptibility to localized corrosion of AlMgSi (AA6016 and AA6111) alloys in certain aggressive environments is high. In this study, synchrotron X-ray microtomography was used to monitor non-destructively corrosion processes within bulk materials. In the selected aggressive solutions, surface-deformed layers showed high localized corrosion susceptibility, but are more stable than the bulk of the alloy during corrosion propagation. In addition, exfoliation-like attack was observed as a transition from intergranular attack. This directed corrosion is not related to grain or crystallographic structure. Finally, intermetallic particles dissolution inside the materials after contact with aggressive solution of the intergranular corrosion path was evidenced. (C) 2008 Elsevier Ltd. All rights reserved.",

keywords = "Aluminium, X-ray microtomography, Exfoliation corrosion, Acid corrosion",

author = "F Eckermann and T Suter and PJ Uggowitzer and A Afseth and Alison Davenport and Brian Connolly and MH Larsen and {De Carlo}, F and P Schmutz",

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doi = "10.1016/j.corsci.2008.09.015",

language = "English",

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T1 - In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomography

AU - Eckermann, F

AU - Suter, T

AU - Uggowitzer, PJ

AU - Afseth, A

AU - Davenport, Alison

AU - Connolly, Brian

AU - Larsen, MH

AU - De Carlo, F

AU - Schmutz, P

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Susceptibility to localized corrosion of AlMgSi (AA6016 and AA6111) alloys in certain aggressive environments is high. In this study, synchrotron X-ray microtomography was used to monitor non-destructively corrosion processes within bulk materials. In the selected aggressive solutions, surface-deformed layers showed high localized corrosion susceptibility, but are more stable than the bulk of the alloy during corrosion propagation. In addition, exfoliation-like attack was observed as a transition from intergranular attack. This directed corrosion is not related to grain or crystallographic structure. Finally, intermetallic particles dissolution inside the materials after contact with aggressive solution of the intergranular corrosion path was evidenced. (C) 2008 Elsevier Ltd. All rights reserved.

AB - Susceptibility to localized corrosion of AlMgSi (AA6016 and AA6111) alloys in certain aggressive environments is high. In this study, synchrotron X-ray microtomography was used to monitor non-destructively corrosion processes within bulk materials. In the selected aggressive solutions, surface-deformed layers showed high localized corrosion susceptibility, but are more stable than the bulk of the alloy during corrosion propagation. In addition, exfoliation-like attack was observed as a transition from intergranular attack. This directed corrosion is not related to grain or crystallographic structure. Finally, intermetallic particles dissolution inside the materials after contact with aggressive solution of the intergranular corrosion path was evidenced. (C) 2008 Elsevier Ltd. All rights reserved.

KW - Aluminium

KW - X-ray microtomography

KW - Exfoliation corrosion

KW - Acid corrosion

U2 - 10.1016/j.corsci.2008.09.015

DO - 10.1016/j.corsci.2008.09.015

M3 - Article

VL - 50

SP - 3455

EP - 3466

JO - Corrosion Science

JF - Corrosion Science

IS - 12

ER -

In situ monitoring of corrosion processes within the bulk of AlMgSi alloys using X-ray microtomography

Abstract

Keywords

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Platform : Fracture, Fatigue and Durability of Advanced Alloys and Composites for High Performance Applications

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