Influences of Milling Time and NbC on Microstructure of AlCoCrFeNi_(2.1)High Entropy Alloy by Mechanical Alloying

作     者：LI Li JIANG Hui NI Zhiliang HAN Kaiming WANG Rui WANG Haixia LI Li;JIANG Hui;NI Zhiliang;HAN Kaiming;WANG Rui;WANG Haixia

作者机构：College of Mechanical and Electronic EngineeringShandong University of Science and TechnologyQingdao266590China Yangzhou Fengming Photoelectric New Material Co.LtdYangzhou225200China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2023年第38卷第2期

页      面：423-429页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Funded by the Natural Science Foundation of Shandong Province (Nos.ZR2020QE019) the National Natural Science Foundation of China (Nos.51901116) the China Postdoctoral Science Fund (2021M692724) 

主　　题：utectic high entropy alloy mechanical alloying alloying behavior grain size 

摘      要：AlCoCrFeNi_(2.1)eutectic high entropy alloy(EHEA)and AlCoCrFeNi_(2.1)-x NbC(x=2.5wt%,5.0wt%,7.5wt%,and 10wt%)high entropy alloy(HEAs)were prepared by mechanical alloying(MA).The effects of milling time and NbC content on the alloying behavior and grain size of the AlCoCrFeNi_(2.1)EHEA were *** experimental results show that the AlCoCrFeNi_(2.1)EHEA primarily consists of order BCC(B2)and face-centered-cubic(FCC)phases,while the AlCoCrFeNi_(2.1)-x NbC(x=2.5wt%,5.0wt%,7.5wt%,and 10wt%)HEAs are composed of B2,FCC,and NbC *** the increase of milling time,the powder goes through three stages,irregularity,cold welding fracture and *** particle size of AlCoCrFeNi_(2.1)EHEA powder shows a trend of first increasing and then ***,the particle size presents a normal distribution during 0-50 h *** the addition of NbC,the AlCoCrFeNi_(2.1)-x NbC HEAs powders are significantly *** the degree of grain refinement gradually increases with the increase of NbC content.