Evolution of texture distribution in thickness direction of aluminum sheet in metal spinning

Gondo, Shiori; Arai, Hirohiko; Kajino, Satoshi; Hanada, Kotaro

doi:10.1016/j.matchar.2022.111877

Cited by 7 publications

(1 citation statement)

References 21 publications

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“…The SEF process features a near-net-shape rheologic forming process, which addresses the problem of structural discontinuity during machining and internal stress concentration caused by welding [5]. However, the strong anisotropy of spin-extruded Al-Li alloy cylindric shells severely limits their further application as aerospace components [6][7][8].There are many factors affecting the anisotropy, of which the crystal texture is the most significant one [9,10] because the precipitated phase is precipitated along a specific orientation. In Al-Li alloy, the T1 phase with the best strength improvement precipitates along the {111} slip plane in dislocation entanglement and subgrain boundary.…”

Section: Introductionmentioning

confidence: 99%

The Correlation between Texture Evolution and Recrystallization Behavior during Rheologic Forming of 2195 Al–Li Alloy Cylindric Shell

Wang

Xiong

Zheng

et al. 2023

Metals

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Spinning extrusion forming (SEF) is a type of rheologic forming process for making complex structured aerospace components, such as ribbed cylindric shells. However, our understanding of the texture evolution and recrystallization behavior during the SEF process is still limited, especially in complex system like the 2195 Al–Li alloy, which is considered to be the ideal material candidate for aerospace vehicles because of its low density and high specific strength. In this study, we investigate the microstructural evolution of a 2195 Al–Li alloy-made cylindric shell component during SEF and subsequent solution treatment and discuss the recrystallization mechanism and its influence on the texture. It is found that particle-stimulated nucleation (PSN) occurs during the SEF process due to a large number of Al2Cu particles, which is responsible for the obvious reduction of texture components during SEF. Additionally, we show that the continuous dynamic recrystallization is responsible for the increased grains with {110} orientation, resulting in relatively stable brass texture components, even in the subsequent solution treatment.

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