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Development of new damage tolerant alloys for age-forming

Development of new damage tolerant alloys for age-forming
Development of new damage tolerant alloys for age-forming
The applicability of age forming for the forming of damage tolerant structures is investigated by formulating and testing new alloy-age forming combinations. The alloy formulation process is driven initially by modelling of strength and semi-quantitative understanding of other microstructure-property relations. Using this a range of Al-Cu-Mg-Li-(Zr-Mn) based alloys that are predicted to provide yield strengths in aged condition comparable with incumbent the 2024-T351 alloy for lower wing skins are selected. It is shown that several of these new alloys after artificial aging representative of age-forming have proof strengths (PS), fatigue crack growth resistance (FCGR) and toughness that are comparable or better than incumbent 2024-T351. UTS to PS ratios of the new alloys are lower than incumbent 2024-T351.
fatigue resistance, 2xxx alloys, dsc, creep forming, toughness
0878498990
0255-5476
396-402
601-606
Trans Tech
Starink, M.J
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Sinclair, I.
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Gao, N.
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Kamp, N.
ba7fdd8e-3e59-4c94-9cf5-944eda3e1050
Gregson, P.J.
ddc3b65d-18fb-4c11-9fa1-feb7e9cbe9fe
Pitcher, P.D.
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Levers, A.
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Gardiner, S.
5cae7fc4-a00e-4a7c-9532-9676c2f7d498
Gregson, P.J.
Harris, S.
Starink, M.J
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Kamp, N.
ba7fdd8e-3e59-4c94-9cf5-944eda3e1050
Gregson, P.J.
ddc3b65d-18fb-4c11-9fa1-feb7e9cbe9fe
Pitcher, P.D.
211dee74-f903-4960-b9ed-6cee8d0a33f2
Levers, A.
2bdb2beb-8b88-4bc7-a4e2-b55d5cb427c3
Gardiner, S.
5cae7fc4-a00e-4a7c-9532-9676c2f7d498
Gregson, P.J.
Harris, S.

Starink, M.J, Sinclair, I., Gao, N., Kamp, N., Gregson, P.J., Pitcher, P.D., Levers, A. and Gardiner, S. (2002) Development of new damage tolerant alloys for age-forming. Gregson, P.J. and Harris, S. (eds.) In Aluminium Alloys 2002: Their Physical and Mechanical Properties. Trans Tech. pp. 601-606 .

Record type: Conference or Workshop Item (Paper)

Abstract

The applicability of age forming for the forming of damage tolerant structures is investigated by formulating and testing new alloy-age forming combinations. The alloy formulation process is driven initially by modelling of strength and semi-quantitative understanding of other microstructure-property relations. Using this a range of Al-Cu-Mg-Li-(Zr-Mn) based alloys that are predicted to provide yield strengths in aged condition comparable with incumbent the 2024-T351 alloy for lower wing skins are selected. It is shown that several of these new alloys after artificial aging representative of age-forming have proof strengths (PS), fatigue crack growth resistance (FCGR) and toughness that are comparable or better than incumbent 2024-T351. UTS to PS ratios of the new alloys are lower than incumbent 2024-T351.

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More information

Published date: 2002
Additional Information: Series ISSN: 0255-5476
Venue - Dates: 8th International Conference ICAA8, 2002-07-02 - 2002-07-05
Keywords: fatigue resistance, 2xxx alloys, dsc, creep forming, toughness

Identifiers

Local EPrints ID: 18828
URI: http://eprints.soton.ac.uk/id/eprint/18828
ISBN: 0878498990
ISSN: 0255-5476
PURE UUID: 50f9397d-3e58-43ad-9bbe-51d5170286dc

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Date deposited: 12 Dec 2005
Last modified: 16 Dec 2019 19:25

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Contributors

Author: M.J Starink
Author: I. Sinclair
Author: N. Gao
Author: N. Kamp
Author: P.J. Gregson
Author: P.D. Pitcher
Author: A. Levers
Author: S. Gardiner
Editor: P.J. Gregson
Editor: S. Harris

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