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A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld

Research output: Contribution to journalArticlepeer-review

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A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld. / Steuwer, A.; Dumont, M.; Altenkirch, J.; Birosca, S.; Deschamps, A.; Prangnell, P. B.; Withers, P. J.

In: Acta Materialia, Vol. 59, No. 8, 05.2011, p. 3002-3011.

Research output: Contribution to journalArticlepeer-review

Harvard

Steuwer, A, Dumont, M, Altenkirch, J, Birosca, S, Deschamps, A, Prangnell, PB & Withers, PJ 2011, 'A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld', Acta Materialia, vol. 59, no. 8, pp. 3002-3011. https://doi.org/10.1016/j.actamat.2011.01.040

APA

Steuwer, A., Dumont, M., Altenkirch, J., Birosca, S., Deschamps, A., Prangnell, P. B., & Withers, P. J. (2011). A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld. Acta Materialia, 59(8), 3002-3011. https://doi.org/10.1016/j.actamat.2011.01.040

Vancouver

Steuwer A, Dumont M, Altenkirch J, Birosca S, Deschamps A, Prangnell PB et al. A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld. Acta Materialia. 2011 May;59(8):3002-3011. https://doi.org/10.1016/j.actamat.2011.01.040

Author

Steuwer, A. ; Dumont, M. ; Altenkirch, J. ; Birosca, S. ; Deschamps, A. ; Prangnell, P. B. ; Withers, P. J. / A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld. In: Acta Materialia. 2011 ; Vol. 59, No. 8. pp. 3002-3011.

Bibtex

@article{0073450d23284d4d842010575b35d568,
title = "A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld",
abstract = "A wide range of complementary techniques are used to build up a detailed picture of the microstructural zones found in friction stir welds (FSW) in an advanced AA2199 Al-Li alloy. Neutron and synchrotron X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, small angle X-ray scattering, scanning electron microscopy, electron backscatter diffraction (EBSD) and hardness mapping are brought together to build up a detailed two-dimensional picture of the grain morphology, precipitate type, size, volume fraction and matrix solute content across the weld cross section and to explain the general lack of a W-shaped hardness profile across FSW in third-generation Al-Li-Cu-Mg alloys. Dissolution of the age-hardening phases occurred in different regions of the weld, depending on their respective solvus temperatures, with δ′ dissolving within the heat-affected zone and T1 coarsening in the thermo-mechanically affected zone before going into solution in the weld nugget. Changes to the precipitate distribution, and especially to the T1 phase, are linked to a significant reduction in hardness (strength) and unstrained lattice parameter across the weld zone. It was also possible to show that the low recovery of nugget zone hardness is primarily due to its poor natural ageing response.",
keywords = "Aluminium alloys, Friction stir welding, Neutron diffraction, Small angle synchrotron X-ray scattering, Synchrotron radiation",
author = "A. Steuwer and M. Dumont and J. Altenkirch and S. Birosca and A. Deschamps and Prangnell, {P. B.} and Withers, {P. J.}",
year = "2011",
month = may,
doi = "10.1016/j.actamat.2011.01.040",
language = "English",
volume = "59",
pages = "3002--3011",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "8",

}

RIS

TY - JOUR

T1 - A combined approach to microstructure mapping of an Al-Li AA2199 friction stir weld

AU - Steuwer, A.

AU - Dumont, M.

AU - Altenkirch, J.

AU - Birosca, S.

AU - Deschamps, A.

AU - Prangnell, P. B.

AU - Withers, P. J.

PY - 2011/5

Y1 - 2011/5

N2 - A wide range of complementary techniques are used to build up a detailed picture of the microstructural zones found in friction stir welds (FSW) in an advanced AA2199 Al-Li alloy. Neutron and synchrotron X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, small angle X-ray scattering, scanning electron microscopy, electron backscatter diffraction (EBSD) and hardness mapping are brought together to build up a detailed two-dimensional picture of the grain morphology, precipitate type, size, volume fraction and matrix solute content across the weld cross section and to explain the general lack of a W-shaped hardness profile across FSW in third-generation Al-Li-Cu-Mg alloys. Dissolution of the age-hardening phases occurred in different regions of the weld, depending on their respective solvus temperatures, with δ′ dissolving within the heat-affected zone and T1 coarsening in the thermo-mechanically affected zone before going into solution in the weld nugget. Changes to the precipitate distribution, and especially to the T1 phase, are linked to a significant reduction in hardness (strength) and unstrained lattice parameter across the weld zone. It was also possible to show that the low recovery of nugget zone hardness is primarily due to its poor natural ageing response.

AB - A wide range of complementary techniques are used to build up a detailed picture of the microstructural zones found in friction stir welds (FSW) in an advanced AA2199 Al-Li alloy. Neutron and synchrotron X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, small angle X-ray scattering, scanning electron microscopy, electron backscatter diffraction (EBSD) and hardness mapping are brought together to build up a detailed two-dimensional picture of the grain morphology, precipitate type, size, volume fraction and matrix solute content across the weld cross section and to explain the general lack of a W-shaped hardness profile across FSW in third-generation Al-Li-Cu-Mg alloys. Dissolution of the age-hardening phases occurred in different regions of the weld, depending on their respective solvus temperatures, with δ′ dissolving within the heat-affected zone and T1 coarsening in the thermo-mechanically affected zone before going into solution in the weld nugget. Changes to the precipitate distribution, and especially to the T1 phase, are linked to a significant reduction in hardness (strength) and unstrained lattice parameter across the weld zone. It was also possible to show that the low recovery of nugget zone hardness is primarily due to its poor natural ageing response.

KW - Aluminium alloys

KW - Friction stir welding

KW - Neutron diffraction

KW - Small angle synchrotron X-ray scattering

KW - Synchrotron radiation

UR - http://www.scopus.com/inward/record.url?scp=79953175004&partnerID=8YFLogxK

UR - https://www.sciencedirect.com/journal/acta-materialia/vol/59/issue/8

U2 - 10.1016/j.actamat.2011.01.040

DO - 10.1016/j.actamat.2011.01.040

M3 - Article

AN - SCOPUS:79953175004

VL - 59

SP - 3002

EP - 3011

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 8

ER -

ID: 21786466