Novel as-cast NiAlCoFeNb dual-phase high-entropy alloys with high hardness

被引：10
|
作者：
Gu, Lei [1 ]
Liang, Ningning [1 ]
Liu, Yi [1 ]
Chen, Yuyao [1 ]
Liu, Jihua [1 ]
Sun, Yixing [1 ]
Zhao, Yonghao [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Jiangsu, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 324卷
基金：
中国国家自然科学基金;
关键词：
Metals and alloys; Microstructure; Crystal structure; Microhardness; B2; phase; Laves phase;
D O I：
10.1016/j.matlet.2022.132676
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure, phase constitution and microhardness of Ni20Al20Co20Fe20Nb20 , Ni25Al25Co20Fe20Nb10 and Ni30Al30Co20Fe15Nb5 high-entropy alloys (HEAs) synthesized by vacuum arc melting have been investigated. These as-cast HEAs have a dual-phase structure including intermetallic NiAl-rich B2 phase and FeNb-rich hexagonal Laves phase, and the Nb increase leads to more fraction of Laves phase. Ultrahigh hardness of ~ 818 HV was achieved in the equiatomic Ni20Al20Co20Fe20Nb20 dual-phase HEA, which is consisted of 61.8 vol% Laves phase and 38.2 vol% B2 phase.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] Tensile strength prediction of dual-phase Al0.6CoCrFeNi high-entropy alloys
    Min Zhang
    Jin-xiong Hou
    Hui-jun Yang
    Ya-qin Tan
    Xue-jiao Wang
    Xiao-hui Shi
    Rui-peng Guo
    Jun-wei Qiao
    International Journal of Minerals Metallurgy and Materials, 2020, 27 (10) : 1341 - 1346
  • [32] Tensile strength prediction of dual-phase Al0.6CoCrFeNi high-entropy alloys
    Zhang, Min
    Hou, Jin-xiong
    Yang, Hui-jun
    Tan, Ya-qin
    Wang, Xue-jiao
    Shi, Xiao-hui
    Guo, Rui-peng
    Qiao, Jun-wei
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2020, 27 (10) : 1341 - 1346
  • [33] Decoupling the roles of constituent phases in the strengthening of hydrogenated nanocrystalline dual-phase high-entropy alloys
    Gao, Zhe
    Zhao, Yakai
    Park, Jeong-Min
    Jeon, A-Hyun
    Murakami, Kotaro
    Komazaki, Shin-ichi
    Tsuchiya, Koichi
    Ramamurty, Upadrasta
    Jang, Jae-il
    SCRIPTA MATERIALIA, 2022, 210
  • [34] Soft-Magnetic High-Entropy AlCoFeMnNi Alloys with Dual-Phase Microstructures Induced by Annealing
    Yang, Chengbo
    Zhang, Jing
    Li, Meng
    Liu, Xuejian
    ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2020, 33 (08) : 1124 - 1134
  • [35] Dual-phase B-doped FeCoNiCuPd high-entropy alloys for nitrogen electroreduction to ammonia
    Wen, Yankun
    Zhang, Wenchao
    Wang, Xiaofan
    Lu, Shuanglong
    Duan, Fang
    Zhu, Han
    Du, Mingliang
    CHEMICAL COMMUNICATIONS, 2023, 59 (89) : 13371 - 13374
  • [36] Metastable high-entropy dual-phase alloys overcome the strength–ductility trade-off
    Zhiming Li
    Konda Gokuldoss Pradeep
    Yun Deng
    Dierk Raabe
    Cemal Cem Tasan
    Nature, 2016, 534 : 227 - 230
  • [37] Correlating Strength and Hardness of High-Entropy Alloys
    Tian, Yanzhong
    Li, Linlin
    Li, Jingjing
    Yang, Yang
    Li, Song
    Qin, Gaowu
    ADVANCED ENGINEERING MATERIALS, 2021, 23 (08)
  • [38] High strength dual-phase high entropy alloys with a tunable nanolayer thickness
    Cao, Z. H.
    Ma, Y. J.
    Cai, Y. P.
    Wang, G. J.
    Meng, X. K.
    SCRIPTA MATERIALIA, 2019, 173 : 149 - 153
  • [39] Unveiling the strengthening mechanisms of as-cast micro-alloyed CrMnFeCoNi high-entropy alloys
    Zamani, Mohammad Reza
    Mirzadeh, Hamed
    Malekan, Mehdi
    Weissensteiner, Irmgard
    Roostaei, Milad
    JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 957
  • [40] Nanohardness and indentation fracture resistance of dual-phase high-entropy ceramic
    Duszova, Annamaria Naughton
    Dakova, Lenka
    Csanadi, Tamas
    Kovalcikova, Alexandra
    Kombamuthu, Vasanthakumar
    Unsal, Hakan
    Tatarko, Peter
    Tatarkova, Monika
    Hvizdos, Pavol
    Sajgalik, Pavol
    CERAMICS INTERNATIONAL, 2023, 49 (14) : 24239 - 24245
12345