Improved Properties in Relation to Fine Precipitate Microstructures Tailored by Combinatorial Processes in an Al–Cu–Mg–Si Alloy

Niu, F.J.; Chen, Jianghua; Wu, C.L.; Wu, Jinglei; Xu, Xiandong; Xie, Pan; Yu, X.W.

doi:10.1007/s40195-020-01093-1

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…Aluminum alloys are widely used in the aircraft and automobile industry due to their low density and high strength [1,2]. The development of vehicle components requires aluminum alloys with higher strength and heat resistance.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

et al. 2021

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The effects of Al–Ti–C and La on the fluidity of a ZL205A alloy after separate and combined addition were studied by conducting a fluidity test. The fluidity of the ZL205A alloy first increased and then decreased with the increasing addition of Al–Ti–C and La; it peaked at 0.3% and 0.1% for Al–Ti–C and La, respectively. The combined addition of Al–Ti–C and La led to better fluidity, which increased by 74% compared with the base alloy. The affecting mechanism was clarified through microstructure characterization and a DSC test. The heterogeneous nucleation aided by Al–Ti–C and La, the number of particles in the melt, and the evolution of the solidification range all played a role. Based on the evolution of the fluidity and grain size, the optimal levels of Al–Ti–C and La leading to both high fluidity and small grain size were identified.

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Section: Introductionmentioning

confidence: 99%

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

et al. 2021

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“…However, sometimes T8 treatment also results in the degradation of performance owing to the precipitates coarsening and the formation of bad precipitates. For example, due to the introduction of pre-deformation, the formation of successive zigzag composite precipitates was promoted, and the Si-modified GPB zones were inhibited in Al-3.0Cu-1.8 Mg-0.5Si alloys, resulting in a decrease in mechanical properties [16,17].…”

Section: Introductionmentioning

confidence: 99%

Dislocation-Induced Precipitation and Its Strengthening of Al–Cu–Li–Mg Alloys with High Mg

Gong

Luo

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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Generally, the good combination of pre-deformation and aging can improve the mechanical strength of the Al-Cu-Li-Mg alloys. However, the effects of pre-deformation on competitive precipitation relationship and precipitation strengthening have not been clarified in detail in Al-Cu-Li-Mg alloys with high Mg. In the present study, the effects of pre-deformation level on the microstructure and mechanical properties of an Al-2.95Cu-1.55Li-0.57Mg-0.18Zr alloy have been investigated. It is found that the introduction of dislocation by 5% pre-deformation can facilitate the precipitation of new successive composite precipitates and T 1 precipitates along the sub-grain boundaries or dislocations and inhibit the precipitation of dispersive GPB zones which is the main precipitates of the alloys without pre-deformation. The introduction of 5% pre-deformation can enhance the mechanical properties considerably. When the pre-deformation level increases from 5 to 15%, the number density of the successive composite precipitates and T 1 precipitates increases, and the aspect ratio of T 1 precipitates decreases. The decrease in T 1 precipitate aspect ratio and the increment of the successive composite precipitates result in the reduction in precipitation strengthening. Therefore, the increase in pre-deformation level from 5 to 15% does not further improve the mechanical properties of the alloys, although the dislocation strengthening increases continuously.

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Anisotropic Inter-granular Corrosion Behaviors and Microstructures of AlMgSiCu Alloy Sheets Made by Thermal–Mechanical Treatments

Liu

Lai

et al. 2021

Acta Metall. Sin. (Engl. Lett.)

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Improved Properties in Relation to Fine Precipitate Microstructures Tailored by Combinatorial Processes in an Al–Cu–Mg–Si Alloy

Cited by 7 publications

References 42 publications

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

Enhanced Fluidity of ZL205A Alloy with the Combined Addition of Al–Ti–C and La

Dislocation-Induced Precipitation and Its Strengthening of Al–Cu–Li–Mg Alloys with High Mg

Anisotropic Inter-granular Corrosion Behaviors and Microstructures of AlMgSiCu Alloy Sheets Made by Thermal–Mechanical Treatments

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