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The strength of friction stir welded and friction stir processed aluminium alloys

Starink, M.J., Deschamps, A. and Wang, S.C. (2008) The strength of friction stir welded and friction stir processed aluminium alloys Scripta Materialia, 58, pp. 377-382.

Record type: Article

Abstract

Local strength of friction stir (FS) welds and FS processed aluminium alloys in heat treatable aluminium alloys is dominated by precipitation hardening. Strengthening due to stored dislocations is generally limited to 40MPa, and grain size strengthening is generally less than 10MPa. Local crystallographic texture can cause yield strength variation on the order of 5%. Published models for strengthening of FS welds make a range of simplifying assumption which can cause uncertainties in the predictions of up to 50MPa. Possible improvements are explored.

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More information

Published date: 2008
Keywords: transmission electron microscopy, aluminium alloys, recrystallized microstructure, phase transformations, yield strength, fsw, fsp, dislocations, gnd, hardening, grain size
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 48158
URI: http://eprints.soton.ac.uk/id/eprint/48158
ISSN: 1359-6462
PURE UUID: ed35dff0-757a-4331-86e8-d60216d82d2e

Catalogue record

Date deposited: 11 Sep 2007
Last modified: 17 Jul 2017 15:00

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Contributors

Author: M.J. Starink
Author: A. Deschamps
Author: S.C. Wang

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