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In situ TEM observation of stress-induced martensitictransformations and twinning processes in CuAlNi single crystals
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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. 5109-5119Number 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