Interface-facilitated stable plasticity in ultra-fine layered FeAl/FeAl_(2) micro-pillar at high temperature

作     者：Lulu Li Irene J.Beyerlein Weizhong Han Lulu Li;Irene J.Beyerlein;Weizhong Han

作者机构：Center for Advancing Materials Performance from the NanoscaleState Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi'an 710049China Department of Mechanical EngineeringMaterials DepartmentUniversity of CaliforniaSanta Barbara.CA.93106-5070USA 

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

年 卷 期：2021年第73卷第14期

页      面：61-65页

核心收录：

学科分类：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] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51922082,51971170 and 51942104) the National Key Research and Development Program of China(No.2017YFB0702301) the 111 Project of China(No.BP2018008) the Innovation Project of Shaanxi Province(No.2017KTPT-12) 

主　　题：Fe-Al alloy Compression High-temperature Interface Dislocation 

摘      要：Fe-Al compounds possess a combination of high strength and corrosion resistance at high ***,increasing Al content to make them lighter results in ***,we investigate the high-temperature behavior of a novel,lightweight,ultra-fine-layered FeAl/FeAl_(2) *** report a transition from unstable to stable plasticity at 450℃.Below 450℃,deformation is dominated by localized shear deformation within the soft FeAl layers,while above 450℃,it proceeds by co-deformation between Fe Al and the brittle FeAl_(2) *** show that co-deformation is associated with the temperature at which the interface converts from sliding to sourcing dislocations for Fe Al_(2).