Effect of gallium alloying on the structure, the phase composition, and the thermoelastic martensitic transformations in ternary Ni-Mn-Ga alloys / Belosludtseva E. S.,Kuranova N. N.,Marchenkova E. B.,Popov A. G.,Pushin V. G. // TECHNICAL PHYSICS. - 2016. - V. 61, l. 4. - P. 547-553.

ISSN/EISSN:

1063-7842 / 1090-6525

Type:

Article

Abstract:

The effect of gallium alloying on the structure, the phase composition, and the properties of quasibinary Ni50Mn50-z Ga (z) (0 a (c) 1/2 z a (c) 1/2 25 at \%) alloys is studied over a wide temperature range. The influence of the alloy composition on the type of crystal structure in high-temperature austenite and martensite and the critical martensitic transformation temperatures is analyzed. A general phase diagram of the magnetic and structural transformations in the alloys is plotted. The temperature-concentration boundaries of the B2 and L2(1) superstructures in the austenite field, the tetragonal L1(0) (2M) martensite, and the 10M and 14M martensite phases with complex multilayer crystal lattices are found. The predominant morphology of martensite is shown to be determined by the hierarchy of the packets of thin coherent lamellae of nano- and submicrocrystalline crystals with planar habit plane boundaries close to \{011\} (B2). Martensite crystals are twinned along one of the 24 ``soft{''} twinning shear systems, which provides coherent accommodation of the martensitic transformation-induced elastic stresses.

Author keywords:

нет данных

DOI:

10.1134/S1063784216040083

Web of Science ID:

ISI:000376425900011

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6525
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	pushin@imp.uran.ru
ResearcherID-Numbers	Belosludtseva, Elena/A-3993-2015 Popov, Alexander/J-4754-2013 Vladimir, Pushin/J-4807-2013 Marchenkova, Elena/J-4851-2013 Kuranova, Natalia/J-4368-2013
ORCID-Numbers	Belosludtseva, Elena/0000-0001-5626-3801 Popov, Alexander/0000-0003-1159-1726 Vladimir, Pushin/0000-0001-7569-0999 Marchenkova, Elena/0000-0002-4191-0655 Kuranova, Natalia/0000-0002-5330-7909
Funding-Acknowledgement	Russian Foundation for Basic Research {[}14-02-00379]
Funding-Text	This work was supported by the Russian Foundation for Basic Research, project no. 14-02-00379.
Number-of-Cited-References	18
Usage-Count-Since-2013	17
Journal-ISO	Tech. Phys.
Doc-Delivery-Number	DM5YG