Influence of out-of-plane stretch forming induced different strain paths on micro-texture evolution, slip system activity and Taylor factor distribution in Al–Li alloy

Rakshit, Rahul; Sarkar, Arnab; Panda, Sushanta Kumar; Mandal, Sumantra

doi:10.1016/j.msea.2021.142267

Cited by 54 publications

(2 citation statements)

References 74 publications

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“…In the case of 7 passes rolling, a recrystallized cubic texture Cube{001}<100> appeared, which consisted of the previously B component {110}<112>, as can be seen in Figure 6 d. The ODF map of 13 passes specimen (see Figure 6 e) showed a little different compared with Figure 6 d but was still composed of recrystallized cubic texture Cube{001}<100> and Brass{110}<112>. These results also were consistent with other reports [ 27 , 28 ].…”

Section: Resultssupporting

confidence: 90%

Microstructural Evolution and Mechanical Properties of Pure Aluminum upon Multi-Pass Caliber Rolling

Guo

Wang

et al. 2022

Materials

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The paper presents the microstructure and mechanical property of pure aluminum (Al) fabricated by multi-pass caliber rolling at room temperature. The finite element modeling (FEM) simulation was performed to explore the changes in rolling force, effective stress and strain, and temperature under various rolling passes. As the number of rolling passes increased, the overall temperature, effective stress, and strain gradually increased, while the maximum rolling force decreased. In addition, due to the dynamic recrystallization (DRX), the average grain size reduced from 1 mm to 14 µm with the increase in rolling passes. The dislocation density increased and it gradually evolved into the high-angle grain boundaries (HAGBs). Moreover, the initial cubic texture rotated to the brass component and finally changed to a mixture of Cube and Brass types. The highest tensile yield strength (TYS), ultimate tensile strength (UTS) and elongation (El.) of caliber rolled pure Al (116 MPa, 135 MPa, and 17%, respectively) can be achieved after 13 rolling passes, which mainly attributed to grain refinement.

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Section: Resultssupporting

confidence: 90%

Microstructural Evolution and Mechanical Properties of Pure Aluminum upon Multi-Pass Caliber Rolling

Guo

Wang

et al. 2022

Materials

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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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Unveiling the Correlation among Microstructure, Texture, Slip System Activity, and Tensile Property in a Hot Rolled Ni Containing Medium‐Mn Steel

Kumar,

Ghosh,

Rakshit

et al. 2024

steel research int.

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The microstructure–texture–tensile property relationships in a Ni‐containing medium‐Mn steel (Ni‐MMS), subjected to limited thermomechanical processing steps (i.e., hot forging and hot rolling), have been established in this study. The microstructure of the specimens hot rolled (HR) at 1173 (HR‐1173K) and 1373 K (HR‐1373K) exhibits ferrite and austenite phases. The austenite phase fraction in the HR‐1173K specimen is found to be higher than the HR‐1373K condition. The volume fraction of austenite to martensite transformation during tensile testing is also observed to be higher in the HR‐1173K specimen (≈13%) than the HR‐1373K condition (≈2%). This suggests the occurrence of more efficient transformation‐induced plasticity effect in the HR‐1173K specimen in comparison to the HR‐1373K condition, resulting in improved strength–ductility synergy in the former specimen. The smaller grain size of both the phases and higher fraction of twin boundaries as well the evolution of higher intensity γ‐fiber <111>//ND in the HR‐1173K specimen leads to better tensile properties. In addition, the overall activation of the primary slip systems (combination of face‐centered cubic and body‐centered cubic phases slip system), estimated through visco‐plastic self‐consistent simulation, is higher in HR‐1173K specimens, resulting in improved strain hardening response as compared to HR‐1373K one.

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Influence of out-of-plane stretch forming induced different strain paths on micro-texture evolution, slip system activity and Taylor factor distribution in Al–Li alloy

Cited by 54 publications

References 74 publications

Microstructural Evolution and Mechanical Properties of Pure Aluminum upon Multi-Pass Caliber Rolling

Microstructural Evolution and Mechanical Properties of Pure Aluminum upon Multi-Pass Caliber Rolling

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

Unveiling the Correlation among Microstructure, Texture, Slip System Activity, and Tensile Property in a Hot Rolled Ni Containing Medium‐Mn Steel

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