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

页数：4

共 50 条

[31] A Hf-doped dual-phase high-entropy alloy: phase evolution and wear features
Ren, Hao
Chen, Rui-Run
Gao, Xue-Feng
Liu, Tong
Qin, Gang
Chiu, Yu-Lung
Wu, Shi-Ping
Guo, Jing-Jie
RARE METALS, 2024, 43 (01) : 324 - 333
[32] Sc doping induced the mechanical property improvement of dual-phase high-entropy alloy
Ren, H.
Chen, R. R.
Gao, X. F.
Liu, T.
Qin, G.
Wu, S. P.
Guo, J. J.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2023, 862
[33] Wear resistance, hardness, and microstructure of carbide dispersion strengthened high-entropy alloys
Khallaf, A. Hegazy
Bhlol, M.
Dawood, O. M.
Elkady, Omayma A.
JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2022, 29 (11) : 3529 - 3543
[34] A Novel Dual-Phase Gradient Material of High-Entropy Alloy Prepared by Spark Plasma Sintering
Zhang, Wei
Zhang, Mingyang
Liu, Fangzhou
Peng, Yingbo
Hu, Songhao
Liu, Yong
TMS 2019 148TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS, 2019, : 1263 - 1270
[35] Research on high specific strength as-cast AlxNbTiVZr high entropy alloys
Xu, Jinliang
Wang, Tao
Lu, Yongfa
Zhang, Shannan
Wei, Wenchao
Wang, Chunyu
MATERIALS SCIENCE AND TECHNOLOGY, 2020, 36 (16) : 1762 - 1770
[36] Predicting the hardness of high-entropy alloys based on compositions
Guo, Qingwei
Pan, Yue
Hou, Hua
Zhao, Yuhong
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2023, 112
[37] Laves-phase formation criterion for high-entropy alloys
Yurchenko, N.
Stepanov, N.
Salishchev, G.
MATERIALS SCIENCE AND TECHNOLOGY, 2017, 33 (01) : 17 - 22
[38] Relation Between Strength and Hardness of High-Entropy Alloys
Fan, Xiaojuan
Qu, Ruitao
Zhang, Zhefeng
ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2021, 34 (11) : 1461 - 1482
[39] Dual-phase WNbTaV refractory high-entropy alloy with exceptional strength and hardness fabricated via spark plasma sintering
Huang, Lei
Chen, Shunhua
Pan, Yafei
MATERIALS TODAY COMMUNICATIONS, 2025, 43
[40] As-cast microstructure and properties of non-equal atomic ratio TiZrTaNbSn high-entropy alloys
Teng-fei Ma
Qiao-yu Li
Yu-liang Jin
Xi Zhao
Xiao-hong Wang
Duo Dong
Dong-dong Zhu
China Foundry, 2022, 19 : 481 - 488

← 1 2 3 4 5 →