Abnormal grain growth behavior and mechanism of 6005A aluminum alloy extrusion profile

Zhao, Haixiao; Sun, Lu; Zhao, Guoqun; Yu, Junquan; Liu, Fei; Sun, Ximan; Lv, Zhengfeng; Cao, Shanpeng

doi:10.1016/j.jmst.2023.02.013

Cited by 12 publications

(1 citation statement)

References 48 publications

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“…High energy storage will drive original grain boundary migration to the regions with higher dislocation density, resulting in grain boundary bulging which has been proved by other researchers. [42,43] It can be seen from Figure 9e that subgrains exist within bulging grain boundaries, and the newly formed nuclei will generate and grow by continuous absorption of dislocations as well as grain boundary migration, which is the typical feature of DDRX. Further increasing the temperature to 500 °C, subgrain boundary disappearance appears (Figure 9f ) and the annihilation of the subgrain boundary implies subgrains merging to produce recrystallized grains with HABs.…”

Section: Relationship Between Shear Bands and Dynamic Recrystallizationmentioning

confidence: 99%

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

Wang,

Ding,

et al. 2024

Adv Eng Mater

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To clarify the evolution behavior of shear bands in Al‐0.5Mg‐0.4Si‐0.1Cu alloy under high temperature conditions, isothermal compression tests were carried out under 400 °C, 450 °C, and 500 °C with 50% compression at a strain rate of 1s‐1. Through Electron Backscattered Diffraction (EBSD), Schmid factors are mainly distributed between 0.395 and 0.495, making lattices easy to rotate and shear bands formed. The shear band, a local plastic deformation structure, has significant impact on the dynamic recrystallization and preferred orientation of grains. Through the recrystallization distribution maps, subgrains absorb a large amount of dislocations, which increases the grains orientation difference, resulting in the formation of recrystallized grains with high angle grain boundaries. In addition, bulging grain boundaries promote the formation of new nuclei. The newly formed nuclei will generate and grow by absorption of dislocations, which is the feature of discontinuous dynamic recrystallization (DDRX). These two phenomena were further confirmed by Transmission Electron Microscope (TEM) tests. Finally, R‐Cube textures mainly formed in shear bands at 400 °C, while in the matrix E‐textures mainly formed at 400 °C and 450 °C, and R‐Goss textures were rotated to form at 500 °C, which was confirmed by EBSD test results.This article is protected by copyright. All rights reserved.

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Section: Relationship Between Shear Bands and Dynamic Recrystallizationmentioning

confidence: 99%

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

Wang,

Ding,

et al. 2024

Adv Eng Mater

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show abstract

Effect of grain size and second phase on the corrosion behavior of MIG-welded Al–Mg–Si–Mn–Cr alloy

et al. 2023

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The evolution of microstructure and texture induced by grinding and subsequent thermal exposure of single crystal alloy

Yu¹,

Gong²,

Pang³

et al. 2023

Journal of Alloys and Compounds

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Abnormal grain growth behavior and mechanism of 6005A aluminum alloy extrusion profile

Cited by 12 publications

References 48 publications

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

Effect of grain size and second phase on the corrosion behavior of MIG-welded Al–Mg–Si–Mn–Cr alloy

The evolution of microstructure and texture induced by grinding and subsequent thermal exposure of single crystal alloy

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