Structure and phase transformations in copper-alloyed rapidly melt-quenched Ni50Ti32Hf18-based alloys with high-temperature shape memory effect / Pushin A. V.,Pushin V. G.,Kuranova N. N.,Kourov N. I.,Kuntsevich T. E.,Makarov V. V.,Uksusnikov A. N. // PHYSICS OF METALS AND METALLOGRAPHY. - 2017. - V. 118, l. 10. - P. 997-1005.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

Methods of transmission and scanning electron microscopy, chemical microanalysis, electron diffraction, and X-ray diffraction have been used to carry out the comparative study of the structure and chemical and phase composition of thin ribbons of four quasi-binary alloys (Ni50Ti32Hf18, Ni45Ti32Hf18Cu5, Ni35Ti32Hf18Cu15, and Ni25Ti32Hf18Cu25) obtained in the amorphous state by rapid quenching from the melt by jet spinning. The critical temperatures of the devitrification and B2 a <-> B19' martensitic transformation of the alloys have been determined based on the data of temperature dependences of the electrical resistivity. The specific features of the formation of the ultrafine-grained structure upon the devitrification and of the phase transformations have been studied depending on the heat-treatment regimes and chemical composition of the alloys (concentration of copper atoms).

Author keywords:

rapid quenching from the melt; microstructure; amorphous state; thermoelastic martensitic transformation; alloying with copper and hafnium THERMOELASTIC MARTENSITIC TRANSFORMATIONS; TINI-TICU ALLOYS; MECHANICAL-PROPERTIES; MICROSTRUCTURE; RIBBONS; STATE

DOI:

10.1134/S0031918X17100118

Web of Science ID:

ISI:000413659000009

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	OCT
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	THERMOELASTIC MARTENSITIC TRANSFORMATIONS; TINI-TICU ALLOYS; MECHANICAL-PROPERTIES; MICROSTRUCTURE; RIBBONS; STATE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	pushin@imp.uran.ru
Funding-Acknowledgement	Russian Scientific Foundation {[}15-12-10014]
Funding-Text	The work was supported by the grant of the Russian Scientific Foundation (project no. 15-12-10014). The X-ray diffraction patterns were obtained by T.E. Kuntsevich under the state task (theme ``Structure,{''} no. 01201463331).
Number-of-Cited-References	35
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	FK7BN