中国铸造2004，Vol.1Issue(1)：62-66,5.
Rheologic behaviors of A356 aluminum alloy billet produced by semisolid continuous casting process
Rheologic behaviors of A356 aluminum alloy billet produced by semisolid continuous casting process
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作者信息
- 1. Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China;Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China;Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China;Department of Meclanical Engineering, Tsinghua University, Beijing 100084, P.R.China;Department of Meclanical Engineering, Tsinghua University, Beijing 100084, P.R.China
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摘要
Abstract
The experiments for rheologic behaviors of semisolid continuous casting billets of A356 alloy in semisolid state had been carried out with a rnultifunctional rheometer. The results show that the deformation rate increases with loading time, the maximum strain reaches to 120 % ( which is one time larger than that of traditional mold casting billet) and the strain can be rapidly elirninated to 10% after unloading. Moreover, there is a critic stress for billet deformation even in semisolid state, which is named as critic shear stress. This stress increases with the decreasing of heating time. The rheologic behaviors can be expressed by five elements mechanical model (H2 - [N1 | H2] - [N2|S] ) and can be modified with the increasing of heating time.关键词
semisolid continuous casting/billet/aluminum alloy/rheologic behaviorKey words
semisolid continuous casting/billet/aluminum alloy/rheologic behavior分类
矿业与冶金引用本文复制引用
..Rheologic behaviors of A356 aluminum alloy billet produced by semisolid continuous casting process[J].中国铸造,2004,1(1):62-66,5.
