Tuning the mechanical properties of Fex(CoMoNi)100-x high-entropy alloys via controlled formation of hard μ phase

Cheng，Zhuo1; Zhu，Weiwei1,2; Yang，Lu1; Zhao，Cancan1; Wei，Pengbo1,3; Ren，Fuzeng1

2020-01-31

10.1016/j.msea.2019.138881

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING   影响因子和分区

0921-5093

1873-4936

Single-phase face-centered cubic (fcc) high-entropy alloys (HEAs) exhibits outstanding ductility but low strength, which hinders their practical applications. To overcome this dilemma, we propose a strategy to achieve an excellent combination of high compressive strength and failure strain via controlled formation of hard intermetallic compound in HEAs. Specifically, we vary the Fe content in FeCoMoNi HEAs to control the relative content of μ phase embedded within the ductile fcc matrix and achieve a yield strength of 1877 MPa and an appreciable fracture strain of ~40% in FeCoMoNi HEA. The present work provides deep insight into the design of high-performance HEAs.

High-entropy alloys Intermetallic compound Mechanical properties

SCI ; EI

英语

第一 ; 通讯

Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06C27f9]

Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000513985200039

Elsevier Ltd

20200207994073

Compressive strength ; Entropy ; High-entropy alloys ; Intermetallics ; Mechanical properties

Metallurgy:531.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Thermodynamics:641.1 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85077491341

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Institute of Applied Physics and Materials Engineering,Faculty of Science & Technology,University of Macau,China
3.Department of Mechanical and Aerospace Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,Hong Kong

Cheng，Zhuo,Zhu，Weiwei,Yang，Lu,et al. Tuning the mechanical properties of Fex(CoMoNi)100-x high-entropy alloys via controlled formation of hard μ phase[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,773.

Cheng，Zhuo,Zhu，Weiwei,Yang，Lu,Zhao，Cancan,Wei，Pengbo,&Ren，Fuzeng.(2020).Tuning the mechanical properties of Fex(CoMoNi)100-x high-entropy alloys via controlled formation of hard μ phase.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,773.

Cheng，Zhuo,et al."Tuning the mechanical properties of Fex(CoMoNi)100-x high-entropy alloys via controlled formation of hard μ phase".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 773(2020).