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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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
ISBNs: 0878498990 (hardback)
ISSNs: 0255-5476 (print)
Related URLs:
Keywords: fatigue resistance, 2xxx alloys, dsc, creep forming, toughness
Subjects: T Technology > TN Mining engineering. Metallurgy
Q Science > QD Chemistry
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 18828
Accepted Date and Publication Date:
Date Deposited: 12 Dec 2005
Last Modified: 31 Mar 2016 11:35

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