Papers by Author: Jian Hui Zhang

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Authors: Jian Hui Zhang, Petre Alexandrov, Jian Hui Zhao
Authors: Jian Hui Zhao, Jian Hui Zhang, Petre Alexandrov, Larry X. Li, Terry Burke
Authors: Jian Hui Zhang, B. Wang, Guo Xing Lu, Tie Guang Zhang
Authors: Alexsandre Ellison, Tsunenobu Kimoto, Ivan G. Ivanov, Qamar-ul Wahab, Anne Henry, Olof Kordina, Jian Hui Zhang, Carl G. Hemmingsson, Chun-Yuan Gu, M.R. Leys, Erik Janzén
Authors: Jian Hui Zhang, Petre Alexandrov, Jian Hui Zhao
Authors: Wei Liang, F.D. Manchester, L.P. Bian, Xing Guo Zhao, Jian Hui Zhang, D.X. Zou
Authors: Yannick Champion, Jian Hui Zhang, G. Youhui, L. Bessais
Authors: Jian Hui Zhao, Jian Hui Zhang, Yan Bin Luo, X. Hu, Yu Zhu Li, H. Yu, J. Lai, Petre Alexandrov, Leonid Fursin, Larry X. Li, J. Carter, M. Weiner
Authors: Jian Hui Zhang, Kenong Xia, Erik Strom, Zeng Yong Zhong, Chang Hai Li
Abstract: This paper presents the true stress - strain curves and data analyses of a Ni-containing TiAl and its reference alloy based on the isothermal compression tests at 1000°C and 0.01 - 1.0s-1 strain rates. The results show that the minor Ni addition makes the flow softening coming sooner and therefore significantly lowers the peak stress. Those effects, in addition with a better balance between the work hardening and flow softening during hot deformation, improve the steady state flow behavior of TiAl. The Ni-influence mechanisms are also suggested based on the TEM observation of dislocation configurations and lamellar breakdown during the deformation.
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