Design and preparation of Al-Fe-Ce ternary aluminum alloys with high thermal conductivity

作     者：Gan LUO Xiong ZHOU Cheng-bo LI Jun DU Zheng-hua HUANG 罗干;周雄;李乘波;杜军;黄正华

作者机构：School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640China Guangdong–Hong Kong Joint Research and Development Center on Advanced Manufacturing Technology for Light AlloysInstitute of New MaterialsGuangdong Academy of SciencesGuangzhou 510650China School of Materials and EnvironmentGuangxi University for NationalitiesNanning 530006China 

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6期

页      面：1781-1794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 Natural Science Foundation of China(No.52174363) the GDAS Project of Science and Technology Development,China(No.2019GDASYL-0203002) the Key Research and Development Program of Guangdong Province,China(No.2020B010186002) the Science and Technology Project of Zhaoqing City,China(Nos.2021C003,2018K006) the Development of Key Technologies for Material and Microstructure Control of High Thermal Conductivity Casting Aluminum Alloy,China(No.2014A030313221) 

主　　题：Al−Fe−Ce alloys Ce modification thermal conductivity mechanical properties 

摘      要：Ce element was introduced to modify Al−2%Fe(mass fraction)binary *** microstructures,crystallization behavior,electrical/thermal conductivities and mechanical properties of these alloys were systematically *** results indicated that the appropriate Ce addition decreased the recalescence temperature and growth temperature of Al−Fe eutectic structure,improved the morphology and distribution of Fe-containing phase,and simultaneously increased the conductivity and mechanical *** annealed treatment improved the thermal conductivity of these alloys due to the decreasing concentration of point *** process further broke up the coarser Fe-containing phases into finer particles and made the secondary phases uniformly distributed in theα(Al)*** subsequent annealing treatment and rolling deformation,the thermal conductivity,ultimate tensile strength and hardness of the Al−2%Fe−0.3%Ce(mass fraction)alloy reached 226 W/(m·K),(182±1.4)MPa and HBW(49.5±1.7),respectively.