Effect of particle size distribution on the microstructure,texture,and mechanical properties of Al–Mg–Si–Cu alloy

作     者：Xiao-feng Wang Ming-xing Guo Cun-qiang Ma Jian-bin Chen Ji-shan Zhang Lin-zhong Zhuang 

作者机构：The Faculty of Mechanical Engineering and MechanicsNingbo UniversityNingbo 315211China State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China Capital Aerospace Machinery CompanyBeijing 100076China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2018年第25卷第8期

页      面：957-966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：financially supported by the National Key Research and Development Program of China (No.2016YFB0300801) the National Natural Science Foundation of China (No.51571023) Zhejiang Provincial Natural Science Foundation of China (No.LQ17E010001) the Beijing Municipal Natural Science Foundation (No.2172038) the Beijing Laboratory of Metallic Materials and Processing for Modern Transportation (No.FRF-SD-B-005B) sponsored by the K.C.Wong Magna Fund in Ningbo University 

主　　题：Al–Mg–Si–Cu alloy microstructure texture particle mechanical property 

摘      要：The effect of particle size distribution on the microstructure,texture,and mechanical properties of Al–Mg–Si–Cu alloy was investigated on the basis of the mechanical properties,microstructure,and texture of the *** results show that the particle size distribution influences the microstructure and the final mechanical properties but only slightly influences the recrystallization *** the pre-aging treatment and natural aging treatment(T4 P treatment),in contrast to the sheet with a uniform particle size distribution,the sheet with a bimodal particle size distribution of large constituent particles and small dispersoids exhibits higher strength and a somewhat lower plastic strain ratio(r) and strain hardening exponent(n).After solution treatment,the sheet with a bimodal particle size distribution of large constituent particles and small dispersoids possesses a finer and slightly elongated grain structure compared with the sheet with a uniform particle size ***,they possess almost identical weak recrystallization textures,and their textures are dominated by CubeND {001} and P {011} orientations.