About: Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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. (en)
Title	Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method (en)
skos:prefLabel	Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method (en)
skos:notation	RIV/61389005:_____/08:00312558!RIV13-AV0-61389005
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/06/0768), P(IAA100480704), P(IAA200100627), Z(AV0Z10100520), Z(AV0Z10480505)
http://linked.open...iv/cisloPeriodika	Sp.Iss.SI
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Lukáš, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	400922
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/08:00312558
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cu-Al-Ni; single crystals; neutron diffraction (en)
http://linked.open.../riv/klicoveSlovo	single crystals Cu-Al-Ni neutron diffraction
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[91AA6F6639DA]
http://linked.open...i/riv/nazevZdroje	Materials Science and Engineering A-Structural materials
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	In situ neutron diffraction studies of internal stress evolution in advanced multiphase steels in unidirectional and cyclic loading Stability and elastic properties of martensitic phases in shape memory alloys Material microstructure investigation by ultrasound spectroscopic methods
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	481
http://linked.open...iv/tvurceVysledku	Lukáš, Petr Novák, V. Šittner, P. Molnar, P.
http://linked.open...ain/vavai/riv/wos	000255716100106
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry Jaderná fyzika a příbuzné obory v základním, aplikovaném a interdisciplinárním výzkumu
issn	0921-5093
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.msea.2007.01.189
is http://linked.open...avai/riv/vysledek of	Twinning processes in Cu-Al-Ni martensite single crystals investigated by neutron single crystal diffraction method

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