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A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates
Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Heilongjiang, Peoples R China..
Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Heilongjiang, Peoples R China.;Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China..
Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA..
Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA..
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2019 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 172, p. 51-55Article in journal (Refereed) Published
Abstract [en]

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. Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2019. Vol. 172, p. 51-55
Keywords [en]
High-entropy alloys, Nanoscale, Mechanical properties
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-259405DOI: 10.1016/j.scriptamat.2019.07.008ISI: 000482510700011Scopus ID: 2-s2.0-85068909691OAI: oai:DiVA.org:kth-259405DiVA, id: diva2:1354404
Note

QC 20190925

Available from: 2019-09-25 Created: 2019-09-25 Last updated: 2019-09-25Bibliographically approved

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Li, Xiaoqing

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