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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.9
- 수록면
- 2,134 - 2,145 (12page)
- DOI
- 10.1007/s12540-021-01109-0
이용수
초록· 키워드
오류제보하기
Isothermal compression tests were carried out to study the hot deformation behavior of T2 copper under various conditions.
The deformation parameters, such as temperature and strain rate, have strong influence on flow stress and microstructureevolution of the alloy. A unified dislocation density-based model considering dynamic recovery and recrystallization wasestablished. And material parameters of the developed model were optimized by genetic algorithm. Comparisons betweenthe experimental and model data demonstrates that the developed model can precisely describe the flow behavior at quitewide range of deformation conditions. Meanwhile, the designed iterative procedure allows the model to be applied in timevariantdeformation conditions. Processing map and microstructure examination were constructed to optimize the processingwindow of the studied alloy. According to the processing maps, flow instability mainly appeared at low temperatures of500?650 °C and strain rates higher than 0.1 s?1. The optimum deformation parameters of T2 copper was concluded as thetemperature range of 700?800 °C and the strain rate of 0.1?1 s?1.
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