High-entropy equiatomic AlCrFeCoNiCu alloy: Hypotheses and experimental data / Ivchenko M. V.,Pushin V. G.,Wanderka N. // TECHNICAL PHYSICS. - 2014. - V. 59, l. 2. - P. 211-223.

ISSN/EISSN:

1063-7842 / 1090-6525

Type:

Article

Abstract:

Experimental data for the structural and phase transformations taking place in cast equiatomic AlCrFeCoNiCu alloy under slow cooling, melt quenching, and a number of thermal treatments are presented. Investigations are carried out by analytical transmission electron microscopy and scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray structural analysis, and X-ray diffraction analysis with the involvement of 3D atom probe tomography data, and nanohardness and elasticity modulus measurements. It is found that the as-cast alloy having a dendritic microstructure decomposes with the separation of at least six nanodimensional phases with different morphologies, structures (of type A2, B2, L1(2)), and chemical compositions. It is also found that a homogeneous ultrafine-grained B2 structure arises in the alloy obtained by melt quenching. This structure decomposes into nanodimensional mainly equiaxial bcc phases, atomically ordered phases (B2), and atomically disordered ones (A2), all being highlighted by subsequent annealing.

Author keywords:

TINI-TICU SYSTEM; MEMORY; MICROSTRUCTURE; ELEMENTS; STATES; MELT

DOI:

10.1134/S1063784214020108

Web of Science ID:

ISI:000332316800009

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	FEB
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6525
Keywords-Plus	TINI-TICU SYSTEM; MEMORY; MICROSTRUCTURE; ELEMENTS; STATES; MELT
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	MVIvchenko@yandex.ru
ResearcherID-Numbers	Ivchenko, Mikhail/J-4722-2013 Vladimir, Pushin/J-4807-2013
ORCID-Numbers	Ivchenko, Mikhail/0000-0001-7528-9695 Vladimir, Pushin/0000-0001-7569-0999
Funding-Acknowledgement	Presidium of the Russian Academy of Sciences {[}12-P-2-1060]; Russian Foundation for Basic Research {[}13-02-96013]; Government of Sverdlovsk oblast {[}RF-32]
Funding-Text	This work was supported by the Presidium of the Russian Academy of Sciences (project no. 12-P-2-1060), the Russian Foundation for Basic Research (grant no. 13-02-96013), and the Government of Sverdlovsk oblast (project no. RF-32).
Number-of-Cited-References	26
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	31
Journal-ISO	Tech. Phys.
Doc-Delivery-Number	AC2GF