On the γ’ precipitates of the normal and inverse Portevin-Le Chatelier effect in a wrought Ni-base superalloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第1期
论文作者：Xinguang Wang Guoming Han Chuanyong Cui Shuai Guan Jinguo Li Guichen Hou Yizhou Zhou Xiaofeng Sun
文章页码：84 - 87
摘 要：The Portevin-Le Chatelier（PLC） effects in a wrought Ni-base superalloy with different γ’ precipitates contents have been investigated. Detailed analysis on the serration type of the tensile curves indicates that the γ’ precipitates have a decisive influence on the transformation from normal to inverse PLC behavior, which is rarely proposed in other works. It is considered that the γ’ precipitates play the same role in PLC effect as temperature and strain rate for the investigated wrought Ni-base superalloy.
Xinguang Wang，Guoming Han，Chuanyong Cui，Shuai Guan，Jinguo Li，Guichen Hou，Yizhou Zhou，Xiaofeng Sun
Institute of Metal Research, Chinese Academy of Sciences
摘 要：The Portevin-Le Chatelier（PLC） effects in a wrought Ni-base superalloy with different γ’ precipitates contents have been investigated. Detailed analysis on the serration type of the tensile curves indicates that the γ’ precipitates have a decisive influence on the transformation from normal to inverse PLC behavior, which is rarely proposed in other works. It is considered that the γ’ precipitates play the same role in PLC effect as temperature and strain rate for the investigated wrought Ni-base superalloy.
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