Plastic deformation of B19’ monoclinic martensite in NiTi shape memory alloys: HRTEM analysis of interfaces in martensite variant microstructures

Molnárová, Orsolya; Klinger, Miloslav; Duchoň, Jan; Seiner, Hanuš; Šittner, Petr

doi:https://dx.doi.org/10.1016/j.actamat.2023.119242

Number of the records: 1

Plastic deformation of B19’ monoclinic martensite in NiTi shape memory alloys: HRTEM analysis of interfaces in martensite variant microstructures

1.

SYSNO ASEP	0574353
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Plastic deformation of B19’ monoclinic martensite in NiTi shape memory alloys: HRTEM analysis of interfaces in martensite variant microstructures
Author(s)	Molnárová, Orsolya (FZU-D)_ORCID Klinger, Miloslav (FZU-D)_ORCID Duchoň, Jan (FZU-D)_{ORCID, RID} Seiner, Hanuš (UT-L)_{RID, ORCID} Šittner, Petr (FZU-D)_{RID, ORCID}
Article number	119242
Source Title	Acta Materialia. - : Elsevier - ISSN 1359-6454 Roč. 258, Oct (2023)
Number of pages	22 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	NiTi shape memory alloy ; B19′ martensite ; mechanism of plastic deformation ; HRTEM analysis of interfaces ; martensite variant microstructure
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
Subject RIV - cooperation	Institute of Thermomechanics - Solid Matter Physics ; Magnetism
R&D Projects	GA20-14114S GA ČR - Czech Science Foundation (CSF)
	GA22-20181S GA ČR - Czech Science Foundation (CSF)
	EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Research Infrastructure	CzechNanoLab - 90110 - Vysoké učení technické v Brně CzechNanoLab II - 90251 - Vysoké učení technické v Brně / Středoevropský technologický institut
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271 ; UT-L - RVO:61388998
UT WOS	001092018800001
EID SCOPUS	85160854076
DOI	10.1016/j.actamat.2023.119242
Annotation	Martensite variant microstructures in grains of nanocrystalline NiTi shape memory wire deformed in tensile test at room temperature up to 15% strain were analyzed in transmission electron microscope (TEM) with the aim to reveal the mechanism of plastic deformation of B19’ monoclinic martensite which created these microstructures. The analysed microstructures consisted of parallel and/or wedge arranged deformation bands within the martensite matrix oriented in a common 010 low index zone. High resolution TEM (HRTEM) analysis of 35 interfaces within a single grain was performed. The observed interfaces were reasonably planar on mesoscale of individual grains but highly irregular on atomic scale. Majority of analysed interfaces displayed interface planes and lattice misorientations similar to (100), (20-1) and (10-1) martensite twins, but not exactly, many interfaces deviated from the exact twin planes and misorientations.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2024
Electronic address	https://doi.org/10.1016/j.actamat.2023.119242

Number of the records: 1