Neutron Strain Scanning of Duplex Steel Subjected to 4-point-Bending with Particular Regard to the strain Free Lattice Parameter D-0

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00498339" target="_blank" >RIV/61389005:_____/18:00498339 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.21741/9781945291890-3" target="_blank" >http://dx.doi.org/10.21741/9781945291890-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21741/9781945291890-3" target="_blank" >10.21741/9781945291890-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Neutron Strain Scanning of Duplex Steel Subjected to 4-point-Bending with Particular Regard to the strain Free Lattice Parameter D-0

Popis výsledku v původním jazyce

Neutronographic residual stress analysis on multiphase materials is challenging with regard to phase-specific micro residual stresses and to the consideration of an appropriate stress free lattice parameter for meaningful lattice strain calculation. Even in case of randomly textured materials stress analysis becomes more elaborate due to plastic anisotropy effects. According to literature for stress analysis using neutron diffraction lattice planes should be chosen that are less prone to plastic anisotropy. These are the {311} austenite and the {220} ferrite planes in case of duplex steels. Here, we report about phase-specific in-situ neutron strain scanning at SALSA@ILL, Grenoble during defined 4-point-bending of duplex steel X2CrNiMoN22-5-3 using exactly these two recommended diffraction lines. It is shown that due to the local texture of the bending bars, which was cut from a hot rolled cylindrical rod, strong plastic anisotropy was determined. This effect must be taken into account for diffraction based residual stress analysis to prevent from erroneous stress determination.

Název v anglickém jazyce

Neutron Strain Scanning of Duplex Steel Subjected to 4-point-Bending with Particular Regard to the strain Free Lattice Parameter D-0

Popis výsledku anglicky

Neutronographic residual stress analysis on multiphase materials is challenging with regard to phase-specific micro residual stresses and to the consideration of an appropriate stress free lattice parameter for meaningful lattice strain calculation. Even in case of randomly textured materials stress analysis becomes more elaborate due to plastic anisotropy effects. According to literature for stress analysis using neutron diffraction lattice planes should be chosen that are less prone to plastic anisotropy. These are the {311} austenite and the {220} ferrite planes in case of duplex steels. Here, we report about phase-specific in-situ neutron strain scanning at SALSA@ILL, Grenoble during defined 4-point-bending of duplex steel X2CrNiMoN22-5-3 using exactly these two recommended diffraction lines. It is shown that due to the local texture of the bending bars, which was cut from a hot rolled cylindrical rod, strong plastic anisotropy was determined. This effect must be taken into account for diffraction based residual stress analysis to prevent from erroneous stress determination.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/GC16-08803J" target="_blank" >GC16-08803J: Analýza gradientů zbytkových napětí v blízkosti rozhraní materiálů pomocí neutronové difrakce</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Research Proceedings

ISBN

978-1-945291-88-3

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

15-20

Název nakladatele

Matarials Research Forum LLC

Místo vydání

Millersville

Místo konání akce

Leuven

Datum konání akce

11. 9. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000451793600003