Processing of an experimental aluminum–lithium alloy for controlled microstructure

Jain, V. K.; Jata, Kumar V.; Rioja, R. J.; Morgan, James T.; Hopkins, Alan K.

doi:10.1016/s0924-0136(97)00219-7

Cited by 23 publications

(8 citation statements)

References 9 publications

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“…The existent precipitation of T2 and T1 phases and composite EBSD analysis shows that dynamic recovery is the main dynamic soften mechanism of 2060 alloy and no DRX grains are found. The absence of dynamic recrystallization in AF/C-489 alloy was also confirmed, as reported by Jain [30]. Hu [31] indicated that both dynamic M A N U S C R I P T…”

Section: Discussionsupporting

confidence: 78%

Hot deformation behavior of 2060 alloy

Zheng

Nie

et al. 2015

Journal of Alloys and Compounds

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Section: Discussionsupporting

confidence: 78%

Hot deformation behavior of 2060 alloy

Zheng

Nie

et al. 2015

Journal of Alloys and Compounds

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“…2060 alloy is the third generation Al-Li production developed by Alcan Inc. in 2011, which significant improvements in elastic modulus, fatigue crack growth resistance, corrosion resistance and plane stress fracture toughness at reduced density as compared to the previous productions [1][2][3], used in manufacture the fuselage and lower wing skin structure [4,5]. The key step in 2060 alloy, the process of obtaining appropriate size and shape is the most important step for working as aircraft structural component, and one commonly used deformation processing is bending, which is an environment-friendly and low waste method in the manufacture of structural parts [6].…”

Section: Introductionmentioning

confidence: 99%

Strain Characterization and Microstructure Evolution Under Deformation in 2060 Alloy

Jin

Zhang

Zhao

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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An electron back-scattered diffraction study on the microstructure evolution of severely deformed aluminum AI6061 alloy M Vaseghi, A Karimi Taheri A new method of DIC combined with EBSD is developed for the characterization of strain and microstructure evolution during bending. The traditional microhardness point and DIC methods are used to study the microstructure evolution in 2060 alloy during bending; the interested area suffers under tensile stress, the microstructure evolution is collected by SEM, EBSD, digital image correlation (DIC) method during bending. The results shows that the DIC method can both realize the strain tensor characterization of the interested area, and can also express the local strain tensor in the micro-area even more. The degree of grain division in the process of deformation is related to the strain in this region; the grains have larger strain of small angle grain boundary (SLGBs), which results in a new micro-organizational structure.The misorientation is smaller with larger strain degree while the misorientation is larger with smaller strain.

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“…Through careful working out of processing maps and microstructural changes [18][19][20][21][22], establishment of the optimum technological process parameters becomes possible, including taking account of the influence of grain size on the properties of the alloy [23]. Cepeda-Jimez et al [18] established the working regime for the forming of Al2024 alloy in the temperature range of 360-410°C and for strain rates of 2.1-4.5 s -1 (g = 13%).…”

Section: Introductionmentioning

confidence: 99%

Technological Aspect of Processing Maps for the AA2099 Alloy

Łukaszek-Sołek

2014

Acta Metall. Sin. (Engl. Lett.)

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Results of an experimental and modelling study of forming processes in the AA2099 Al-Cu-Li alloy, for a wide range of temperatures, strains and strain rates, are presented. The analyses are based on tensile testing at 20°C at a strain rate of 0.02 s-1 and uniaxial compression testing in the temperature range 400-550°C at strain rates ranging from 0.001 to 100 s-1 , for constant values of true strain of 0.5 and 0.9. The stability of plastic deformation and its relationship with a sensitivity of stress to strain rate are considered. The power dissipation efficiency coefficient, g(%), and the flow instability parameter, n B 0, were determined. The complex processing maps for hot working were determined and quantified, including process frames for basic forging processes: conventional forging and for near-superplastic and isothermal conditions. A significant aspect is the convergence of power dissipation when passing through the 500°C peak. Deformation, temperature and strain-rate-dependent microstructures at 500°C for strain rates of 0.1, 1, 10 and 100 s-1 are described and analysed for the conventional die forging process frame, corresponding to 465-523°C and strain rates of 50-100 s-1 .

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Processing of an experimental aluminum–lithium alloy for controlled microstructure

Cited by 23 publications

References 9 publications

Hot deformation behavior of 2060 alloy

Hot deformation behavior of 2060 alloy

Strain Characterization and Microstructure Evolution Under Deformation in 2060 Alloy

Technological Aspect of Processing Maps for the AA2099 Alloy

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