Microstructures and mechanical properties of FeCoNi(MoW)x high-entropy alloys

Lei Pan; An Jin Liu; Lin Wang; Xing Wang Cheng

doi:10.1016/j.matlet.2021.131250

Microstructures and mechanical properties of FeCoNi(MoW)_x high-entropy alloys

Lei Pan, An Jin Liu, Lin Wang^*, Xing Wang Cheng

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

FeCoNi(MoW)_x (x = 0.2, 0.3, 0.5) high-entropy alloys with different W and Mo additions are investigated in this paper. There was segregation of W and Mo elements in the as-cast alloy. FeCoNi(MoW)_x alloys are mainly FCC phase and μ phase. With the increase of W and Mo content, more μ phase is precipitated in the FCC matrix. After room temperature quasi-static compressive and tensile tests, with the increase of μ phase content, due to its precipitation strengthening effect, the FeCoNi(MoW)_x alloy compressive yield strength increase from 288 MPa to 930 MPa. But its inherent brittleness resulte in a significant decrease in plasticity, when x = 0.5, the elongation is only 0.45%.

Original language	English
Article number	131250
Journal	Materials Letters
Volume	308
DOIs	https://doi.org/10.1016/j.matlet.2021.131250
Publication status	Published - 1 Feb 2022

Keywords

FeCoNi(MoW)x high-entropy alloys
Mechanical properties
Metals and alloys
Microstructure
μ phase

Access to Document

10.1016/j.matlet.2021.131250

Cite this

@article{236615872f6f4d2eb6f2317992d0e358,

title = "Microstructures and mechanical properties of FeCoNi(MoW)x high-entropy alloys",

abstract = "FeCoNi(MoW)x (x = 0.2, 0.3, 0.5) high-entropy alloys with different W and Mo additions are investigated in this paper. There was segregation of W and Mo elements in the as-cast alloy. FeCoNi(MoW)x alloys are mainly FCC phase and μ phase. With the increase of W and Mo content, more μ phase is precipitated in the FCC matrix. After room temperature quasi-static compressive and tensile tests, with the increase of μ phase content, due to its precipitation strengthening effect, the FeCoNi(MoW)x alloy compressive yield strength increase from 288 MPa to 930 MPa. But its inherent brittleness resulte in a significant decrease in plasticity, when x = 0.5, the elongation is only 0.45%.",

keywords = "FeCoNi(MoW)x high-entropy alloys, Mechanical properties, Metals and alloys, Microstructure, μ phase",

author = "Lei Pan and Liu, {An Jin} and Lin Wang and Cheng, {Xing Wang}",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2022",

month = feb,

day = "1",

doi = "10.1016/j.matlet.2021.131250",

language = "English",

volume = "308",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructures and mechanical properties of FeCoNi(MoW)x high-entropy alloys

AU - Pan, Lei

AU - Liu, An Jin

AU - Wang, Lin

AU - Cheng, Xing Wang

PY - 2022/2/1

Y1 - 2022/2/1

N2 - FeCoNi(MoW)x (x = 0.2, 0.3, 0.5) high-entropy alloys with different W and Mo additions are investigated in this paper. There was segregation of W and Mo elements in the as-cast alloy. FeCoNi(MoW)x alloys are mainly FCC phase and μ phase. With the increase of W and Mo content, more μ phase is precipitated in the FCC matrix. After room temperature quasi-static compressive and tensile tests, with the increase of μ phase content, due to its precipitation strengthening effect, the FeCoNi(MoW)x alloy compressive yield strength increase from 288 MPa to 930 MPa. But its inherent brittleness resulte in a significant decrease in plasticity, when x = 0.5, the elongation is only 0.45%.

AB - FeCoNi(MoW)x (x = 0.2, 0.3, 0.5) high-entropy alloys with different W and Mo additions are investigated in this paper. There was segregation of W and Mo elements in the as-cast alloy. FeCoNi(MoW)x alloys are mainly FCC phase and μ phase. With the increase of W and Mo content, more μ phase is precipitated in the FCC matrix. After room temperature quasi-static compressive and tensile tests, with the increase of μ phase content, due to its precipitation strengthening effect, the FeCoNi(MoW)x alloy compressive yield strength increase from 288 MPa to 930 MPa. But its inherent brittleness resulte in a significant decrease in plasticity, when x = 0.5, the elongation is only 0.45%.

KW - FeCoNi(MoW)x high-entropy alloys

KW - Mechanical properties

KW - Metals and alloys

KW - Microstructure

KW - μ phase

UR - http://www.scopus.com/inward/record.url?scp=85119513422&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2021.131250

DO - 10.1016/j.matlet.2021.131250

M3 - Article

AN - SCOPUS:85119513422

SN - 0167-577X

VL - 308

JO - Materials Letters

JF - Materials Letters

M1 - 131250

ER -

Microstructures and mechanical properties of FeCoNi(MoW)_x high-entropy alloys

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this