EXPLORING THE EFFECT OF LOADING nCONDITIONS ON THE IDEAL nTENSILE STRENGTH

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00480377" target="_blank" >RIV/68081723:_____/17:00480377 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

EXPLORING THE EFFECT OF LOADING nCONDITIONS ON THE IDEAL nTENSILE STRENGTH

Popis výsledku v původním jazyce

We simulated the uniaxial tensile test of fcc nickel and cobalt containing the Sigma5(210) tilt GB with 12 segregated sp-impurities. Segregation preference of the impurity atoms at GB was determined with the help of calculations of segregation energy. It turned out that Al, Ga, In, Sn, Sb and Te preferred the substitutional positions and Si, P, S, Ge, As and Se the interstitial positions. The computational tensile tests considered two distinct approaches. One of them conformed to a separation of rigid grains simulating thus brittle cleavage slony a defined cleavage plane. The other approach was computationally more demanding since it also includes the Poisson contraction and full relaxation of the lattice. This model corresponds to the optimised uniaxial loading. The difference between computed strength values for both deformation models demonstrates that the choice of deformation model can play a crucial role in predicting the effect of impurities at GBs.

Název v anglickém jazyce

EXPLORING THE EFFECT OF LOADING nCONDITIONS ON THE IDEAL nTENSILE STRENGTH

Popis výsledku anglicky

We simulated the uniaxial tensile test of fcc nickel and cobalt containing the Sigma5(210) tilt GB with 12 segregated sp-impurities. Segregation preference of the impurity atoms at GB was determined with the help of calculations of segregation energy. It turned out that Al, Ga, In, Sn, Sb and Te preferred the substitutional positions and Si, P, S, Ge, As and Se the interstitial positions. The computational tensile tests considered two distinct approaches. One of them conformed to a separation of rigid grains simulating thus brittle cleavage slony a defined cleavage plane. The other approach was computationally more demanding since it also includes the Poisson contraction and full relaxation of the lattice. This model corresponds to the optimised uniaxial loading. The difference between computed strength values for both deformation models demonstrates that the choice of deformation model can play a crucial role in predicting the effect of impurities at GBs.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/GA16-24711S" target="_blank" >GA16-24711S: Struktura a vlastnosti vybraných nanokompozitů</a><br>

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 knihy nebo sborníku

Supercomputing in science and engineering: IT4Innovations National Supercomputing Center

ISBN

978-80-248-4037-6

Počet stran výsledku

3

Strana od-do

177-179

Počet stran knihy

221

Název nakladatele

VŠB – Technical University of Ostrava

Místo vydání

Ostrava

Kód UT WoS kapitoly

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