The Effects of Retrogression and Reaging on Aluminum Alloy 2099 (C458)
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- Ward, N., Tran, A., Abad, A. et al. J. of Materi Eng and Perform (2011) 20: 989. doi:10.1007/s11665-010-9737-7
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The objective of this study was to investigate the feasibility of performing retrogression and reaging (RRA) heat treatments on 2099 aluminum-lithium alloy. The retrogression temperatures were 200-250 °C and retrogression times were 5-60 min. Half of the samples were exposed to a salt fog environment. Interestingly, the samples exposed to salt spray had consistently higher mechanical tensile properties than those which were not exposed.