Evolution of theta ' precipitate in aluminum alloy 2519A impacted by split Hopkinson bar

作者：Sun Da xiang; Zhang Xin ming^*; Ye Ling ying; Gu Gang; Jiang Hai chun; Gui Xing hui

来源：MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 620: 241-245.

DOI：10.1016/j.msea.2014.10.029

• Aluminum alloy 2519A
• Split Hopkinson bar
• Pre-aging
• Precipitate evolution
• High strain rate

The evolution of theta' (Al2Cu) precipitates in 2519A alloy impacted by a split Hopkinson bar has been investigated. The precipitates decompose by dislocation cutting, and redissolve at high strain rate. And due to pre-aging treatment, finer and denser precipitates can slow this evolution.

• 单位
  中南大学