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Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method
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SYSNO ASEP 0312558 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method Tvůrce(i) Molnar, P. (CZ)
Šittner, P. (CZ)
Novák, V. (CZ)
Lukáš, Petr (UJF-V) RID, ORCID, SAIZdroj.dok. Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 481, Sp.Iss.SI (2008), s. 513-517Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Cu-Al-Ni ; single crystals ; neutron diffraction Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEP IAA100480704 GA AV ČR - Akademie věd CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000255716100106 DOI 10.1016/j.msea.2007.01.189 Anotace A neutron single crystal diffraction method for inspecting the quality of martensite single crystals is introduced. True interface-free martensite single crystals are indispensable for, e.g. measurement of elastic constants of phases by ultrasonic techniques. The neutron diffraction method was used to detect and distinguish the presence of individual lattice correspondence variants of the 2H orthorhombic martensite phase in Cu-Al-Ni as well as to follow the activity of twinning processes during the deformation test on the martensite variant single crystals. When preparing the martensite single variant prism-shaped crystals by compression deformation method, typically a small fraction of second unwanted martensitic variant (compound twin) remains in the prism samples. Due to the very low stress (similar to 1 MPa) for the compound twinning in many shape memory alloys, it is quite difficult not only to deplete the martensite prisms of all internal interfaces but mainly to keep them in the martensite single variant state for a long time needed for further investigations. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2013
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