In-situ synchrotron X-ray diffraction texture analysis of tensile deformation of nanocrystalline NiTi wire in martensite state

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556273" target="_blank" >RIV/68378271:_____/22:00556273 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0330558" target="_blank" >http://hdl.handle.net/11104/0330558</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apmt.2022.101378" target="_blank" >10.1016/j.apmt.2022.101378</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In-situ synchrotron X-ray diffraction texture analysis of tensile deformation of nanocrystalline NiTi wire in martensite state

Popis výsledku v původním jazyce

Tensile deformation of nanocrystalline superelastic NiTi wire in the martensite state at -90 °C until fracture was investigated by in-situ synchrotron X-ray diffraction texture analysis. The results were interpreted in terms of various transformation and deformation twinning modes and using an abstraction of “ideal <hkl> fibre textured polycrystal” for estimating the martensite texture evolution. The four fibre texture of selfaccommodated martensite transforms during martensite reorientation into the sharp two fibre texture of reoriented martensite reflecting (001) compound twinned microstructure. Plastic deformation of martensite proceeds via peculiar deformation twinning and kinking assisted by [100]/(011) dislocation slip, which enables the nanocrystalline NiTi wire to deform at ∼1 GPa engineering stress up to very large plastic strains ∼50% with small strain hardening and brings about refinement of the austenitic microstructure of the NiTi wire down to nanoscale.

Název v anglickém jazyce

In-situ synchrotron X-ray diffraction texture analysis of tensile deformation of nanocrystalline NiTi wire in martensite state

Popis výsledku anglicky

Tensile deformation of nanocrystalline superelastic NiTi wire in the martensite state at -90 °C until fracture was investigated by in-situ synchrotron X-ray diffraction texture analysis. The results were interpreted in terms of various transformation and deformation twinning modes and using an abstraction of “ideal <hkl> fibre textured polycrystal” for estimating the martensite texture evolution. The four fibre texture of selfaccommodated martensite transforms during martensite reorientation into the sharp two fibre texture of reoriented martensite reflecting (001) compound twinned microstructure. Plastic deformation of martensite proceeds via peculiar deformation twinning and kinking assisted by [100]/(011) dislocation slip, which enables the nanocrystalline NiTi wire to deform at ∼1 GPa engineering stress up to very large plastic strains ∼50% with small strain hardening and brings about refinement of the austenitic microstructure of the NiTi wire down to nanoscale.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Applied Materials Today

ISSN

2352-9407

e-ISSN

2352-9407

Svazek periodika

26

Číslo periodika v rámci svazku

Mar.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

29

Strana od-do

101378

Kód UT WoS článku

000783939600004

EID výsledku v databázi Scopus

2-s2.0-85123033509