Localized plastic deformation of superelastic NiTi wires in tension

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00574356" target="_blank" >RIV/68378271:_____/23:00574356 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/23:00371007

Výsledek na webu

<a href="https://hdl.handle.net/11104/0344695" target="_blank" >https://hdl.handle.net/11104/0344695</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s40830-023-00415-3" target="_blank" >10.1007/s40830-023-00415-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Localized plastic deformation of superelastic NiTi wires in tension

Popis výsledku v původním jazyce

Tensile deformation of superelastic NiTi shape memory alloy wires at temperatures above austenite finish temperature proceeds via stress-induced martensitic transformation followed by plastic deformation of oriented martensite. While superelastic deformation tends to proceed in localized manner, plastic deformation of martensite is considered to be homogeneous. In this work, we have investigated strain localization patterns in tensile tests on superelastic NiTi wires deformed until fracture in wide temperature range from 10 to 400 °C using in situ digital image correlation analysis of local strains and analyzed lattice defects created during the deformation in TEM. We have found that plastic deformation of oriented martensite can be either homogeneous or localized, depending on the yield stress and strain hardening rate (on the Considere criterion for stability of tensile deformation).

Název v anglickém jazyce

Localized plastic deformation of superelastic NiTi wires in tension

Popis výsledku anglicky

Tensile deformation of superelastic NiTi shape memory alloy wires at temperatures above austenite finish temperature proceeds via stress-induced martensitic transformation followed by plastic deformation of oriented martensite. While superelastic deformation tends to proceed in localized manner, plastic deformation of martensite is considered to be homogeneous. In this work, we have investigated strain localization patterns in tensile tests on superelastic NiTi wires deformed until fracture in wide temperature range from 10 to 400 °C using in situ digital image correlation analysis of local strains and analyzed lattice defects created during the deformation in TEM. We have found that plastic deformation of oriented martensite can be either homogeneous or localized, depending on the yield stress and strain hardening rate (on the Considere criterion for stability of tensile deformation).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Shape Memory and Superelasticity

ISSN

2199-384X

e-ISSN

2199-3858

Svazek periodika

9

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

19

Strana od-do

261-279

Kód UT WoS článku

000931717500003

EID výsledku v databázi Scopus

2-s2.0-85147675903