Microstructure and mechanical properties of two Al alloys welded by linear friction weld

Shuang Xie; Zhangwen Xia; Rengen Ding; Hangyue Li; Paul Bowen

doi:10.1016/j.msea.2021.141261

Microstructure and mechanical properties of two Al alloys welded by linear friction weld

Shuang Xie, Zhangwen Xia, Rengen Ding^*, Hangyue Li, Paul Bowen

^*Corresponding author for this work

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

Abstract

Two high strength Al alloys AA2050 and AA7010 have been joined using linear friction welding (LFW) in this study. Microstructural evolution across the weld line developed during linear friction welding has been examined. Their effects on mechanical properties have also been evaluated. A clean weld region where there is free of microcracking, microporosity, and oxides, was obtained. Dynamic recrystallization (nearly full and partial) took place on the weldment. Dissolution of ‘parent’ precipitates in centre weld zone (CWZ) and thermomechanical affected zone (TMAZ) was observed, thus leading to lower hardness and strength compared with the parent materials.

Original language	English
Article number	141261
Number of pages	21
Journal	Materials Science and Engineering A
Volume	816
Early online date	20 Apr 2021
DOIs	https://doi.org/10.1016/j.msea.2021.141261
Publication status	Published - 1 Jun 2021

Bibliographical note

Funding Information:
The authors gratefully acknowledge the Engineering and Physical Sciences Research Council (EPSRC, UK) for the financial support (award number EP/K503691/1) and GKN plc. for provision of welds.

Publisher Copyright:
© 2021 Elsevier B.V.

Keywords

AA2050
AA7010
Al alloys
Linear friction welding
Mechanical properties
Microstructure

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Cite this

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title = "Microstructure and mechanical properties of two Al alloys welded by linear friction weld",

abstract = "Two high strength Al alloys AA2050 and AA7010 have been joined using linear friction welding (LFW) in this study. Microstructural evolution across the weld line developed during linear friction welding has been examined. Their effects on mechanical properties have also been evaluated. A clean weld region where there is free of microcracking, microporosity, and oxides, was obtained. Dynamic recrystallization (nearly full and partial) took place on the weldment. Dissolution of {\textquoteleft}parent{\textquoteright} precipitates in centre weld zone (CWZ) and thermomechanical affected zone (TMAZ) was observed, thus leading to lower hardness and strength compared with the parent materials.",

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AU - Xie, Shuang

AU - Xia, Zhangwen

AU - Ding, Rengen

AU - Li, Hangyue

AU - Bowen, Paul

N1 - Funding Information: The authors gratefully acknowledge the Engineering and Physical Sciences Research Council (EPSRC, UK) for the financial support (award number EP/K503691/1) and GKN plc. for provision of welds. Publisher Copyright: © 2021 Elsevier B.V.

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N2 - Two high strength Al alloys AA2050 and AA7010 have been joined using linear friction welding (LFW) in this study. Microstructural evolution across the weld line developed during linear friction welding has been examined. Their effects on mechanical properties have also been evaluated. A clean weld region where there is free of microcracking, microporosity, and oxides, was obtained. Dynamic recrystallization (nearly full and partial) took place on the weldment. Dissolution of ‘parent’ precipitates in centre weld zone (CWZ) and thermomechanical affected zone (TMAZ) was observed, thus leading to lower hardness and strength compared with the parent materials.

AB - Two high strength Al alloys AA2050 and AA7010 have been joined using linear friction welding (LFW) in this study. Microstructural evolution across the weld line developed during linear friction welding has been examined. Their effects on mechanical properties have also been evaluated. A clean weld region where there is free of microcracking, microporosity, and oxides, was obtained. Dynamic recrystallization (nearly full and partial) took place on the weldment. Dissolution of ‘parent’ precipitates in centre weld zone (CWZ) and thermomechanical affected zone (TMAZ) was observed, thus leading to lower hardness and strength compared with the parent materials.

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Microstructure and mechanical properties of two Al alloys welded by linear friction weld

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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