Microstructure features of high-entropy equiatomic cast AlCrFeCoNiCu alloys / Ivchenko M. V.,Pushin V. G.,Uksusnikov A. N.,Wanderka N. // PHYSICS OF METALS AND METALLOGRAPHY. - 2013. - V. 114, l. 6. - P. 514-520.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

The structural and phase transformations that take place in the cast high-entropy equiatomic alloy AlCrFeCoNiCu after solidification, homogenizing heat treatment, and cooling have been studied. Analytical transmission microscopy, scanning electron microscopy, X-ray energy dispersive spectroscopy, and X-ray diffraction analysis were used to conduct the studies. The elastic modulus, nano-, and microhardness have been measured. The alloy decomposition has been found to occur with the precipitation of no less than six nanoscale phases with different morphologies, structures (A2, B2, L1(2)), and chemical compositions. All the nanophases are multicomponent solid solutions enriched with several elements, which indicates the pronounced elemental and phase nanomodulation over the alloy volume.

Author keywords:

high-entropy equiatomic alloy; mixing entropy; spinodal decomposition; structural and phase transformations; nanophases; chemical composition SYSTEM

DOI:

10.1134/S0031918X13060069

Web of Science ID:

ISI:000320406400007

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	SYSTEM
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	MVIvchenko@yandex.ru
ResearcherID-Numbers	Vladimir, Pushin/J-4807-2013 Uksusnikov, Alexey/J-5270-2013 Ivchenko, Mikhail/J-4722-2013
ORCID-Numbers	Vladimir, Pushin/0000-0001-7569-0999 Uksusnikov, Alexey/0000-0003-2551-8968 Ivchenko, Mikhail/0000-0001-7528-9695
Funding-Acknowledgement	Presidium of the Russian Academy of Sciences {[}12-P-2-1060]; Ural Branch of Russian Academy of Sciences {[}12-M-235-2063]
Funding-Text	This work was supported in part by the Presidium of the Russian Academy of Sciences, project no. 12-P-2-1060; and by the Ural Branch of Russian Academy of Sciences project no. 12-M-235-2063.
Number-of-Cited-References	18
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	23
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	164JX