The effect of solution treatment and rolling mode on the mechanical properties of 2090 AlLi alloy

Pfost, D.; Crawford, P.J.; Méndez, J.; Barrosa, R.; Quintanilla, F.; Flores, Francisco; Bojorquez, B.; Gealogo, P.; Foyos, J.; Es‐Said, O.S.

doi:10.1016/0924-0136(95)01868-9

Cited by 6 publications

(1 citation statement)

References 4 publications

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“…However, the usage of Al-Li alloys has been delayed due to reduced ductility and fracture toughness, high level anisotropy of mechanical properties, and susceptibility to stress-corrosion cracking (SCC) [1][2][3][4][5]. In Al-Li alloys, the poor ductility and intergranular fracture and susceptibility to stress corrosion cracking along grain boundaries in thick sections are associated with a pancake-shaped grain structure in rolled plate products.…”

Section: Introductionmentioning

confidence: 99%

Retrogression characteristics of a novel Al-Cu-Li-X alloy

Yuan

et al. 2010

Int J Miner Metall Mater

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Retrogression characteristics of a novel Al-Cu-Li-X alloy of 2A97 were studied by hardness testing, transmission electron microscopy (TEM), and differential scanning calorimetry (DSC). The retrogression treatments of aging at 155°C for 12 h followed by aging at 220 and 240°C were chosen by determining the peak temperature of δ' precipitation at 230°C by DSC. The retrogression treatment at a lower temperature of 220°C causes the precipitation and coarsening of δ' and θ' phases in the matrix, resulting in an increase in hardness. Retrogression at a higher temperature of 240°C causes the dissolution and coarsening of δ' and θ' precipitates in the matrix and on the grain boundaries, resulting in a decrease in hardness. Microstructural changes upon retrogression including the appearance of equilibrium precipitates such as T 1 , T 2 , δ', and θ are confirmed by the selected area electron diffraction and the bright and dark field image analysis.

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Section: Introductionmentioning

confidence: 99%

Retrogression characteristics of a novel Al-Cu-Li-X alloy

Yuan

et al. 2010

Int J Miner Metall Mater

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Microstructural evolution and mechanical properties of a new Al–Cu–Li–X alloy at different solution temperatures

Zhang

Zheng

et al. 2016

Rare Met.

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Bibliography

2014

Aluminum-Lithium Alloys

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Evaluation of corrosion behaviour of AlÀMgÀLi alloys in sea water. J. Mater. Eng. Perform. 5, 235À240. Ahmadi, S., Arabi, H., Shokuhfar, A., 2010. Effects of multiple strengthening treatments on mechanical properties and stability of nanoscale precipitated phases in an alumi-numÀcopperÀlithium alloy. J. Mater. Sci. Technol. 26, 1078À1082. Ahmed, M., 1987, Correlation between aging heat treatments, microstructure and stress corrosion properties of AlÀLiÀCuÀMg alloys.

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The effect of solution treatment and rolling mode on the mechanical properties of 2090 AlLi alloy

Cited by 6 publications

References 4 publications

Retrogression characteristics of a novel Al-Cu-Li-X alloy

Retrogression characteristics of a novel Al-Cu-Li-X alloy

Microstructural evolution and mechanical properties of a new Al–Cu–Li–X alloy at different solution temperatures

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