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In situ TEM observation of stress-induced martensitictransformations and twinning processes in CuAlNi single crystals

SYSNO ASEP	0347975
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	In situ TEM observation of stress-induced martensitictransformations and twinning processes in CuAlNi single crystals
Author(s)	Zárubová, Niva (FZU-D) Gemperlová, Juliana (FZU-D) Gemperle, Antonín (FZU-D) Dlabáček, Zdeněk (FZU-D) Šittner, Petr (FZU-D)_{RID, ORCID} Novák, Václav (FZU-D)
Source Title	Acta Materialia. - : Elsevier - ISSN 1359-6454 Roč. 58, č. 15 (2010), s. 5109-5119
Number of pages	11 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	CuAlNi shape memory alloy ; martensitic transformation ; in situ TEM straining
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	IAA200100627 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
UT WOS	000280570500020
DOI	10.1016/j.actamat.2010.05.046
Annotation	Stress-induced martensitic transformations and twinning processes were studied in thin foils of CuAlNi single crystals strained in situ in a transmission electron microscope. The nucleation and growth of the martensite plates were monitored for three transformation processes known from bulk experiments: (i) the transformation of austenite into 2H martensite at low-stress levels; (ii) the twinning/detwinning processes in 2H martensite; and (iii) the transformation between austenite and 18R martensite at higher stress levels. The morphology of the austenite/martensite habit planes was examined, and the existence of planar interfaces between a single variant of 2H martensite and austenite on the microscopic level was proven.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2011

Number of the records: 1