Fatigue performance of superelastic NiTi near stress-induced martensitic transformation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00473793" target="_blank" >RIV/68378271:_____/17:00473793 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2016.10.005" target="_blank" >http://dx.doi.org/10.1016/j.ijfatigue.2016.10.005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2016.10.005" target="_blank" >10.1016/j.ijfatigue.2016.10.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue performance of superelastic NiTi near stress-induced martensitic transformation

Popis výsledku v původním jazyce

The structural fatigue of superelastic NiTi was studied with special attention paid to the drop in fatigue performance commonly observed at the onset of the stress-induced martensitic transformation. We processed the superelastic NiTi wires into an hourglass shape as a result of which the stress induced martensitic transformation in tension is not localized as confirmed by digital image correlation measurements. The hourglass shaped samples were subjected to force controlled pull-pull fatigue tests at two distinct temperatures selected to investigate the fatigue of NiTi with and without the R-phase transformation involved, and to capture the effect of varying critical stress for the onset of B19' martensitic transformation. Resulting fatigue curves expressed in terms of both the stress and the strain show a first degradation of fatigue performance at stresses more than 200 MPa below the onset of the martensitic transformation.

Název v anglickém jazyce

Fatigue performance of superelastic NiTi near stress-induced martensitic transformation

Popis výsledku anglicky

The structural fatigue of superelastic NiTi was studied with special attention paid to the drop in fatigue performance commonly observed at the onset of the stress-induced martensitic transformation. We processed the superelastic NiTi wires into an hourglass shape as a result of which the stress induced martensitic transformation in tension is not localized as confirmed by digital image correlation measurements. The hourglass shaped samples were subjected to force controlled pull-pull fatigue tests at two distinct temperatures selected to investigate the fatigue of NiTi with and without the R-phase transformation involved, and to capture the effect of varying critical stress for the onset of B19' martensitic transformation. Resulting fatigue curves expressed in terms of both the stress and the strain show a first degradation of fatigue performance at stresses more than 200 MPa below the onset of the martensitic transformation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

International Journal of Fatigue

ISSN

0142-1123

e-ISSN

—

Svazek periodika

95

Číslo periodika v rámci svazku

Feb

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

76-89

Kód UT WoS článku

000389159700008

EID výsledku v databázi Scopus

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