A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates

Gang Qin; Ruirun Chen; Peter K. Liaw; Yanfei Gao; Xiaoqing Li; Huiting Zheng; Liang Wang; Yanqing Su; Jingjie Guo; Hengzhi Fu

doi:10.1016/j.scriptamat.2019.07.008

A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates

Gang Qin
, Ruirun Chen^*
, Peter K. Liaw
, Yanfei Gao
, Xiaoqing Li
, Huiting Zheng
, Liang Wang
, Yanqing Su
, Jingjie Guo
, Hengzhi Fu

^*Corresponding author for this work

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

96 Citations (Scopus)

Abstract

A new single-phase face-centered-cubic (FCC) Co₉Cr₇Cu₃₆Mn₂₅Ni₂₃ [atomic percent, similar hereinafter] high-entropy alloy (HEA) was prepared by arc melting. A uniform distribution of nanometer-sized precipitates was achieved. The tensile yield strength, ultimate tensile strength, and elongation were 401 MPa, 700 MPa, and 36%, respectively. The energy-dispersive spectrometer results showed that the nano-precipitates were rich in Co and Cr elements. Moreover, the crystal-forming behavior and the nanoscale-precipitates-forming mechanism were revealed.

Original language	English
Pages (from-to)	51-55
Number of pages	5
Journal	Scripta Materialia
Volume	172
DOIs	https://doi.org/10.1016/j.scriptamat.2019.07.008
Publication status	Published - Nov 2019
Externally published	Yes

Keywords

High-entropy alloys
Mechanical properties
Nanoscale

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10.1016/j.scriptamat.2019.07.008

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title = "A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates",

abstract = "A new single-phase face-centered-cubic (FCC) Co9Cr7Cu36Mn25Ni23 [atomic percent, similar hereinafter] high-entropy alloy (HEA) was prepared by arc melting. A uniform distribution of nanometer-sized precipitates was achieved. The tensile yield strength, ultimate tensile strength, and elongation were 401 MPa, 700 MPa, and 36\%, respectively. The energy-dispersive spectrometer results showed that the nano-precipitates were rich in Co and Cr elements. Moreover, the crystal-forming behavior and the nanoscale-precipitates-forming mechanism were revealed.",

keywords = "High-entropy alloys, Mechanical properties, Nanoscale",

author = "Gang Qin and Ruirun Chen and Liaw, \{Peter K.\} and Yanfei Gao and Xiaoqing Li and Huiting Zheng and Liang Wang and Yanqing Su and Jingjie Guo and Hengzhi Fu",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = nov,

doi = "10.1016/j.scriptamat.2019.07.008",

language = "English",

volume = "172",

pages = "51--55",

journal = "Scripta Materialia",

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TY - JOUR

T1 - A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates

AU - Qin, Gang

AU - Chen, Ruirun

AU - Liaw, Peter K.

AU - Gao, Yanfei

AU - Li, Xiaoqing

AU - Zheng, Huiting

AU - Wang, Liang

AU - Su, Yanqing

AU - Guo, Jingjie

AU - Fu, Hengzhi

PY - 2019/11

Y1 - 2019/11

N2 - A new single-phase face-centered-cubic (FCC) Co9Cr7Cu36Mn25Ni23 [atomic percent, similar hereinafter] high-entropy alloy (HEA) was prepared by arc melting. A uniform distribution of nanometer-sized precipitates was achieved. The tensile yield strength, ultimate tensile strength, and elongation were 401 MPa, 700 MPa, and 36%, respectively. The energy-dispersive spectrometer results showed that the nano-precipitates were rich in Co and Cr elements. Moreover, the crystal-forming behavior and the nanoscale-precipitates-forming mechanism were revealed.

AB - A new single-phase face-centered-cubic (FCC) Co9Cr7Cu36Mn25Ni23 [atomic percent, similar hereinafter] high-entropy alloy (HEA) was prepared by arc melting. A uniform distribution of nanometer-sized precipitates was achieved. The tensile yield strength, ultimate tensile strength, and elongation were 401 MPa, 700 MPa, and 36%, respectively. The energy-dispersive spectrometer results showed that the nano-precipitates were rich in Co and Cr elements. Moreover, the crystal-forming behavior and the nanoscale-precipitates-forming mechanism were revealed.

KW - High-entropy alloys

KW - Mechanical properties

KW - Nanoscale

UR - https://www.scopus.com/pages/publications/85068909691

U2 - 10.1016/j.scriptamat.2019.07.008

DO - 10.1016/j.scriptamat.2019.07.008

M3 - Article

AN - SCOPUS:85068909691

SN - 1359-6462

VL - 172

SP - 51

EP - 55

JO - Scripta Materialia

JF - Scripta Materialia

ER -

A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates

Abstract

Keywords

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