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Martensitic transformation in Co-based ferromagnetic shape memory alloy

SYSNO ASEP	0386875
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Martensitic transformation in Co-based ferromagnetic shape memory alloy
Author(s)	Kopeček, Jaromír (FZU-D)_{RID, ORCID} Yokaichiya, F. (BR) Laufek, F. (CZ) Jarošová, Markéta (FZU-D)_{RID, ORCID} Jurek, Karel (FZU-D)_{RID, ORCID, SAI} Drahokoupil, Jan (FZU-D)_{RID, ORCID} Sedláková-Ignácová, Silvia (FZU-D)_RID Molnár, Peter (FZU-D)_RID Heczko, Oleg (FZU-D)_{RID, ORCID}
Source Title	Acta Physica Polonica A. - : Polska Akademia Nauk - ISSN 0587-4246 Roč. 122, č. 3 (2012), s. 475-477
Number of pages	3 s.
Action	International Symposium on Physics of Materials, ISPMA /12./
Event date	04.09.2011-08.09.2011
VEvent location	Praha
Country	CZ - Czech Republic
Event type	WRD
Language	eng - English
Country	PL - Poland
Keywords	microstructure ; shape memory alloys ; neutron diffraction ; cobalt alloys
Subject RIV	JG - Metallurgy
R&D Projects	GA101/09/0702 GA ČR - Czech Science Foundation (CSF)
	GAP107/10/0824 GA ČR - Czech Science Foundation (CSF)
	IAA100100920 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
	AV0Z10100521 - FZU-D (2005-2011)
UT WOS	000309019200013
EID SCOPUS	84865847945
Annotation	The Co38Ni33Al29 alloy in both powder and bulk state was investigated in the presented study using neutron diffraction on E9 high resolution powder diffractometer at HZB (BER II). The reverse martensitic phase transformation from the tetragonal martensitic phase into the cubic austenitic phase was observed with the phase coexistence within the temperatures from 183 K to 133 K. The fcc cobalt solid solution particles distributed in the transforming matrix remained in the same state through the whole temperature range. The obtained results agree with magnetization measurements on the same annealed sample. The powder data are compared with experiments on bulk sample, although there was a texture present. The obtained results provide further information about the phase transition process in this important class of ferromagnetic shape memory alloys.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2013

Number of the records: 1