Development of new damage tolerant alloys for age-forming

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. In, Gregson, P.J. and Harris, S. (eds.) Aluminium Alloys 2002: Their Physical and Mechanical Properties. 8th International Conference ICAA8 Switzerland, Trans Tech, 601-606. (Materials Science Forum 396-402).

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Description/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.

Item Type:Book Section
Additional Information:Series ISSN: 0255-5476
ISBN:0878498990 (hardback)
Uncontrolled Keywords:fatigue resistance, 2xxx alloys, dsc, creep forming, toughness
Related URLs:http://www.scientific.net/0-87...899-0/601/
Subjects:T Technology > TN Mining engineering. Metallurgy
Q Science > QD Chemistry
Divisions:University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID:18828
URI:http://eprints.soton.ac.uk/id/eprint/18828
Deposited On:12 Dec 2005
Last Modified:02 Mar 2012 11:25

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