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Constitutive relationship and microstructure evolution of a 5vol.%Tip/AZ91D composite was studied using plane strain compression under a temperature range of 300 °C–400 °C and a strain rate range of 0.01 s−1–1.0 s−1. It is found that the peak flow stress decreases with the increasing temperature and decreasing strain rate. Dynamic recrystallization occurred during process. According to the theory of thermal processing diagram, the thermal processing map of the composite material under the true strain of 0.3 -0.5 was drawn. The interval was mainly distributed in the low temperature and high strain rate area, where the suitable processing interval was 388°C–400 °C, and the strain rate was 0.001 s−1–0.0018 s−1.

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Hot Deformation Behavior of Ti Particles Reinforced AZ91D Composites

  • 会议论文

  • 发表日期：

    2026年

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  • Yuehua Kang,
  • Xiaohui Zhang,
  • Nan Zhou,
  • Jianbo Li,
  • Jun Tan,
  • Xianhua Chen,
  • Kaihong Zheng,
  • Fusheng Pan

摘要

Constitutive relationship and microstructure evolution of a 5vol.%Tip/AZ91D composite was studied using plane strain compression under a temperature range of 300 °C–400 °C and a strain rate range of 0.01 s−1–1.0 s−1. It is found that the peak flow stress decreases with the increasing temperature and decreasing strain rate. Dynamic recrystallization occurred during process. According to the theory of thermal processing diagram, the thermal processing map of the composite material under the true strain of 0.3 -0.5 was drawn. The interval was mainly distributed in the low temperature and high strain rate area, where the suitable processing interval was 388°C–400 °C, and the strain rate was 0.001 s−1–0.0018 s−1.