Corrosion of a dissimilar friction stir weld joining aluminium alloys AA2024 and AA7010

M. Jariyaboon; A. J. Davenport; R. Ambat; B. J. Connolly; S. W. Williams; D. A. Price

doi:10.1179/174327806X107905

Corrosion of a dissimilar friction stir weld joining aluminium alloys AA2024 and AA7010

M. Jariyaboon
, A. J. Davenport
, R. Ambat
, B. J. Connolly
, S. W. Williams
, D. A. Price

University of Birmingham
Technical University of Denmark
ATC Sowerby

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

The corrosion behaviour of a dissimilar metal friction stir weld between AA2024-T351 and AA7010-T7651 was investigated. Gel visualisation and immersion tests were used to examine the effect of galvanic coupling between the two components. A microelectrochemical cell with a 400 μm diameter glass tip was used to measure the anodic and cathodic reactivities at different positions in the weld region as well as in the base alloys. It was found that the net anodic attack was in the 7010 alloy with the highest susceptibility in the nugget region. The nugget region of 2024 was protected by its high net cathodic reactivity owing to the precipitation of S phase particles.

Original language	English
Pages (from-to)	135-142
Number of pages	8
Journal	Corrosion Engineering Science and Technology
Volume	41
Issue number	2
DOIs	https://doi.org/10.1179/174327806X107905
Publication status	Published - Jun 2006
Externally published	Yes

Keywords

Aluminium alloy
Corrosion
Dissimilar welding
Friction stir welding

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10.1179/174327806X107905

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title = "Corrosion of a dissimilar friction stir weld joining aluminium alloys AA2024 and AA7010",

abstract = "The corrosion behaviour of a dissimilar metal friction stir weld between AA2024-T351 and AA7010-T7651 was investigated. Gel visualisation and immersion tests were used to examine the effect of galvanic coupling between the two components. A microelectrochemical cell with a 400 μm diameter glass tip was used to measure the anodic and cathodic reactivities at different positions in the weld region as well as in the base alloys. It was found that the net anodic attack was in the 7010 alloy with the highest susceptibility in the nugget region. The nugget region of 2024 was protected by its high net cathodic reactivity owing to the precipitation of S phase particles.",

keywords = "Aluminium alloy, Corrosion, Dissimilar welding, Friction stir welding",

author = "M. Jariyaboon and Davenport, \{A. J.\} and R. Ambat and Connolly, \{B. J.\} and Williams, \{S. W.\} and Price, \{D. A.\}",

year = "2006",

month = jun,

doi = "10.1179/174327806X107905",

language = "English",

volume = "41",

pages = "135--142",

journal = "Corrosion Engineering Science and Technology",

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TY - JOUR

T1 - Corrosion of a dissimilar friction stir weld joining aluminium alloys AA2024 and AA7010

AU - Jariyaboon, M.

AU - Davenport, A. J.

AU - Ambat, R.

AU - Connolly, B. J.

AU - Williams, S. W.

AU - Price, D. A.

PY - 2006/6

Y1 - 2006/6

N2 - The corrosion behaviour of a dissimilar metal friction stir weld between AA2024-T351 and AA7010-T7651 was investigated. Gel visualisation and immersion tests were used to examine the effect of galvanic coupling between the two components. A microelectrochemical cell with a 400 μm diameter glass tip was used to measure the anodic and cathodic reactivities at different positions in the weld region as well as in the base alloys. It was found that the net anodic attack was in the 7010 alloy with the highest susceptibility in the nugget region. The nugget region of 2024 was protected by its high net cathodic reactivity owing to the precipitation of S phase particles.

AB - The corrosion behaviour of a dissimilar metal friction stir weld between AA2024-T351 and AA7010-T7651 was investigated. Gel visualisation and immersion tests were used to examine the effect of galvanic coupling between the two components. A microelectrochemical cell with a 400 μm diameter glass tip was used to measure the anodic and cathodic reactivities at different positions in the weld region as well as in the base alloys. It was found that the net anodic attack was in the 7010 alloy with the highest susceptibility in the nugget region. The nugget region of 2024 was protected by its high net cathodic reactivity owing to the precipitation of S phase particles.

KW - Aluminium alloy

KW - Corrosion

KW - Dissimilar welding

KW - Friction stir welding

UR - https://www.scopus.com/pages/publications/33845664399

U2 - 10.1179/174327806X107905

DO - 10.1179/174327806X107905

M3 - Article

AN - SCOPUS:33845664399

SN - 1478-422X

VL - 41

SP - 135

EP - 142

JO - Corrosion Engineering Science and Technology

JF - Corrosion Engineering Science and Technology

IS - 2

ER -

Corrosion of a dissimilar friction stir weld joining aluminium alloys AA2024 and AA7010

Abstract

Keywords

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