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논문 기본 정보

자료유형
학술저널
저자정보
Gang Chen (Harbin Institute of Technology) Yu Jin (Harbin Institute of Technology) Jing Wang (Harbin Institute of Technology) Cheng Zhang (Henan University of Science and Technology) Qiang Chen (Southwest Technology and Engineering Research Institute) Hongming Zhang (Harbin Institute of Technology) Xingjian Zhao (Shandong North Coastal Machinery Company Limited) Zhiyong Li (Shandong North Coastal Machinery Company Limited) Changhai Xie (Shandong North Coastal Machinery Company Limited) Zhiming Du (Harbin Institute of Technology)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.28 No.9
발행연도
2022.9
수록면
2,134 - 2,145 (12page)
DOI
10.1007/s12540-021-01109-0

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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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