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<p>Various defects in aluminum alloys can weaken the structural continuity of the materials, leading to fractures during the forming process and thus reducing the yield rate of material forming. Rich iron phase defects and void defects are the primary sources of adverse effects, but studies on the impact of these two types of defects on the formability of aluminum alloys are limited. This study investigates the effects of these two defects on the formability of aluminum alloys through tensile tests, in situ tribology tests, and cupping tests. The results shows that the combined action of the two defects reduces the formability of the specimens. Rich iron phase defects reduce the continuity of the substrate and exacerbate wear during the forming process. Void defects promote the generation of cracks in the substrate and become the origin of failure. This study has laid the foundation for improving the forming yield rate of aluminum alloys.</p>

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Impact of Defects on the Formability of Aluminum Alloys

  • 期刊论文

  • 发表日期：

    2025年6月5日

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  • Xiaoming Wang,
  • Fengjie Yan,
  • Jiesong Tu,
  • Dan Jia,
  • Guozheng Li,
  • Zhengdong Yang

摘要

Various defects in aluminum alloys can weaken the structural continuity of the materials, leading to fractures during the forming process and thus reducing the yield rate of material forming. Rich iron phase defects and void defects are the primary sources of adverse effects, but studies on the impact of these two types of defects on the formability of aluminum alloys are limited. This study investigates the effects of these two defects on the formability of aluminum alloys through tensile tests, in situ tribology tests, and cupping tests. The results shows that the combined action of the two defects reduces the formability of the specimens. Rich iron phase defects reduce the continuity of the substrate and exacerbate wear during the forming process. Void defects promote the generation of cracks in the substrate and become the origin of failure. This study has laid the foundation for improving the forming yield rate of aluminum alloys.