Portevin-Le Chatelier effect in wrought Ni-based superalloys:Experiments and mechanisms

作     者：Chuanyong Cui Rui Zhang Yizhou Zhou Xiaofeng Sun Chuanyong Cui;Rui Zhang;Yizhou Zhou;Xiaofeng Sun

作者机构：Institute of Metal ResearchChinese Academy of SciencesShenyang110016China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第47卷第16期

页      面：16-31页

核心收录：

学科分类：0806[工学-冶金工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51671189 and 51271174) the Ministry of Science and Technology of China(Nos.2017YFA0700703 and 2019YFA0705304) 

主　　题：PLC effect Wrought Ni-based superalloys Experimental phenomenon Micromechanism 

摘      要：The Portevin-Le Chatelier(PLC)effect is a plastic instability in alloys at certain strain rates and deformation *** plastic instability exhibits serrated yielding in the temporal domain and strain localization in the spatial *** Ni-based superalloys often exhibit the PLC *** guarantee the safe and stable operation of equipment,it is important to study the PLC effect in wrought Ni-based *** paper provides a review of various experimental phenomena and micromechanisms related to the PLC effect in wrought Ni-based superalloys,which have been reported in various publications in recent years and include work from our own *** influences of stacking fault energy andγ’precipitates on the PLC effect in wrought Ni-based superalloys are also discussed in ***,several suggestions for the future study of the PLC effect in wrought Ni-based superalloys are provided.