High-strength ultrafine-grained CoCrFeNiNb high-entropy alloy prepared by mechanical alloying: properties and strengthening mechanism

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00532147" target="_blank" >RIV/68378271:_____/20:00532147 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/20:43920843 RIV/60461373:22810/20:43920843

Result on the web

<a href="https://doi.org/10.1016/j.jallcom.2020.155308" target="_blank" >https://doi.org/10.1016/j.jallcom.2020.155308</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2020.155308" target="_blank" >10.1016/j.jallcom.2020.155308</a>

Result language

angličtina

Original language name

High-strength ultrafine-grained CoCrFeNiNb high-entropy alloy prepared by mechanical alloying: properties and strengthening mechanism

Original language description

An equiatomic CoCrFeNiNb alloy was prepared by conventional induction melting and by 8 h of mechanical alloying and compaction via spark plasma sintering. The alloy prepared via mechanical alloying showed a uniform ultrafine-grained microstructure composed of an FCC solid solution strengthened by HCP Laves phases. A detailed TEM inspection revealed the presence of nanocrystalline Cr2O3 particles at the triple junctions of the present grains as well as stacking faults and nanotwins found exclusively in the interior of the FCC solid solution grains. The mechanically alloyed alloy compacted at 1000 °C showed hardness of 798 ± 9 HV 30 and compressive ultimate strength of 2412 MPa. Those values were significantly higher than those obtained for the cast alloy. The strengthening effect of the individual structural contribution was calculated as well.n

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Volume of the periodical

835

Issue of the periodical within the volume

Sep

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

19

Pages from-to

1-19

UT code for WoS article

000546685800058

EID of the result in the Scopus database

2-s2.0-85084254699