Homogenization of twin-roll cast AA8079 aluminum alloy studied by in-situ TEM

作     者：R.KRÁLÍK B.KŘIVSKÁ L.BAJTOŠOVÁ M.ŠLAPÁKOVÁ M.CIESLAR R.KRÁLÍK;B.KŘIVSKÁ;L.BAJTOŠOVÁ;M.ŠLAPÁKOVÁ;M.CIESLAR

作者机构：Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 312116 Prague 2Czechia 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第7期

页      面：2138-2149页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：The financial supports of the Charles University Grant Agency Project(No.704119) Project TRIO FV(No.20337)of the Czech Ministry of Industry and Trade are highly acknowledged 

主　　题：aluminum alloys in-situ annealing homogenization foil stock materials 

摘      要：AA8079 is a commonly used stock material for manufacturing thin packaging *** primary alloying elements Fe and Si can form binary and tertiary ***-situ TEM simulating homogenization annealing process of the as-cast material was used to analyze the real-time changes of the shape,type,and distribution of these *** affect the mechanical properties of the final product and susceptibility of the material to the formation of pinholes and other macroscopic *** set of as-cast samples were annealed in a regime simulating industrial treatment in combination with measurements of resistivity to validate the results of the in-situ *** results show clear temperature intervals of recovery,matrix desaturation,and phase transformations occurring in several stages:spheroidization of the original particles above 450℃,nucleation of new particles at 475℃,particles coarsening above 525℃,and an entire dissolution of the original particles above 550℃.