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Abstract <p>The influence of crystallographic textures, which was correlated to intermediate annealing (IA) after hot-rolling, on the hemming performance of Al–Mg–Si alloy sheets was investigated in the present paper. Cube ({001} &lt; 100 &gt;) texture is developed after IA and is partially retained after cold-rolling, becoming increasingly pronounced as the IA temperature rises, with the particle-stimulated nucleation (PSN) texture predominating in T4P sheets. In contrast, the T4P sheet without prior IA develops a strong Cube texture, but the clustering of Cube-oriented grains leads to deformation incompatibility with surrounding grains. Consequently, the hemming performance of T4P sheet without prior IA is inferior to that of IA-treated sheets. The hemming performance is improved by IA treatment due to the development of the Cube<sub>ND</sub> (~ 22° ND-rotated Cube, {001} &lt; 310 &gt;) orientation induced by the PSN effect. And the hemming performance can be further improved by increasing IA temperature, due to coarsening of Mg<sub>2</sub>Si particles and the increase of effective PSN particles which lead to the increase of volume fraction of Cube<sub>ND</sub> orientation in T4P sheets.</p> Graphical Abstract <p></p>

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Tailoring Crystallographic Textures to Improve Hemming Performance of Al–Mg–Si Alloy Via Intermediate Annealing

  • 期刊论文

  • 发表日期：

    2025年6月6日

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  • Xiyan Hu,
  • Xin Zhan,
  • Jianguo Tang,
  • Mingan Chen,
  • Lingying Ye,
  • Shengdan Liu,
  • Lehang Ma,
  • Qianyu Zhao,
  • Feiqing Li,
  • Xiaoguang Zhao

摘要

Abstract

The influence of crystallographic textures, which was correlated to intermediate annealing (IA) after hot-rolling, on the hemming performance of Al–Mg–Si alloy sheets was investigated in the present paper. Cube ({001} < 100 >) texture is developed after IA and is partially retained after cold-rolling, becoming increasingly pronounced as the IA temperature rises, with the particle-stimulated nucleation (PSN) texture predominating in T4P sheets. In contrast, the T4P sheet without prior IA develops a strong Cube texture, but the clustering of Cube-oriented grains leads to deformation incompatibility with surrounding grains. Consequently, the hemming performance of T4P sheet without prior IA is inferior to that of IA-treated sheets. The hemming performance is improved by IA treatment due to the development of the CubeND (~ 22° ND-rotated Cube, {001} < 310 >) orientation induced by the PSN effect. And the hemming performance can be further improved by increasing IA temperature, due to coarsening of Mg2Si particles and the increase of effective PSN particles which lead to the increase of volume fraction of CubeND orientation in T4P sheets.

Graphical Abstract