Scholarlink

<p>The microstructure and mechanical properties of 3003 aluminum alloy after cold rolling to a 70% reduction in thickness and subsequent annealing at temperatures ranging from room temperature (RT) to 450 °C were investigated. This study focuses on the interaction between the second-phase particles and the matrix, and the evolving relationship between them, to explore their influence on the alloy’s performance. The results show that during annealing at 350&#xa0;°C to 375&#xa0;°C, the microstructure is primarily influenced by recrystallization. When the annealing temperature reaches 425&#xa0;°C, the proportion of second-phase particles larger than 1 μm significantly increases, which facilitates the activation of the particle-stimulated nucleation (PSN) mechanism. At this point, the microstructure is mainly controlled by the second phase. During the annealing process at 450&#xa0;°C, the quantity of second-phase particles significantly decreased, resulting in a weakened precipitation strengthening effect and a reduction in the alloy’s strength. Simultaneously, the proportion of second-phase particles larger than 1 μm increased, leading to stress concentration, which in turn caused a decrease in the alloy’s ductility. Consequently, both the strength and ductility of the alloy decrease. The sample annealed at 425 °C exhibited a tensile strength of 154.6&#xa0;MPa and an elongation of 32.7%, demonstrating excellent microstructure and mechanical properties.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Effect of Annealing Process on the Microstructure and Mechanical Properties of 3003 Aluminum Alloy Sheet

  • 期刊论文

  • 发表日期：

    2025年6月18日

查看全文
  • Shuai-Kang Xu,
  • Lin Chen,
  • Wei Chen,
  • Ke Zhang,
  • Ming-Ya Zhang,
  • Jing-Hui Li

摘要

The microstructure and mechanical properties of 3003 aluminum alloy after cold rolling to a 70% reduction in thickness and subsequent annealing at temperatures ranging from room temperature (RT) to 450 °C were investigated. This study focuses on the interaction between the second-phase particles and the matrix, and the evolving relationship between them, to explore their influence on the alloy’s performance. The results show that during annealing at 350 °C to 375 °C, the microstructure is primarily influenced by recrystallization. When the annealing temperature reaches 425 °C, the proportion of second-phase particles larger than 1 μm significantly increases, which facilitates the activation of the particle-stimulated nucleation (PSN) mechanism. At this point, the microstructure is mainly controlled by the second phase. During the annealing process at 450 °C, the quantity of second-phase particles significantly decreased, resulting in a weakened precipitation strengthening effect and a reduction in the alloy’s strength. Simultaneously, the proportion of second-phase particles larger than 1 μm increased, leading to stress concentration, which in turn caused a decrease in the alloy’s ductility. Consequently, both the strength and ductility of the alloy decrease. The sample annealed at 425 °C exhibited a tensile strength of 154.6 MPa and an elongation of 32.7%, demonstrating excellent microstructure and mechanical properties.