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Tracer diffusion of 65Zn, 110mAg and 88Y in QE22 metal matrix composite

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00322041" target="_blank" >RIV/68081723:_____/09:00322041 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Tracer diffusion of 65Zn, 110mAg and 88Y in QE22 metal matrix composite

  • Original language description

    Tracer diffusion of 65Zn, 110mAg and 88Y in QE22 metal matrix composite was measured by serial sectioning method in the temperature interval 646?728 K. In the case of the reinforced alloy, the effective diffusion coefficients Deff were obtained and interface diffusion coefficients D i in the interface boundaries were estimated. Both temperature dependences of Deff and D i were not Arrhenius-type. This feature was explained by the large difference in coefficients of the thermal expansion of the metal matrix and the reinforcement. In the case of 88Y diffusion in un-reinforced QE22 alloy, it was found that yttrium diffuses along dislocations that act as paths of rapid diffusion. Diffusivity of 88Y along dislocations, a2sDd, was estimated.

  • Czech name

    Difúze 65Zn, 110mAg and 88Y in QE22 kompozitu

  • Czech description

    Difúze 65Zn, 110mAg a 88Y in QE22 kompozitu byla studována metodou odebírání vrstev v teplotním intervalu 646?728 K. V případě kompozitní sloučeniny, byly získány efektivní difúzní koeficienty Deff a odhadnuty mezifázové difúzní koeficienty D i in v mezifázových hranicích. Obě teplotní závislosti of Deff and D i byly nearrheniovského typu. Tento rys byls vysvětlen s pomocí velkého rozdílu koeficientu tepelné expanze matrice a vyztužení. V případě difúze 88Y v nevyztužené slitině QE22 bylo zjištěno, že ytrium difunduje podél dislokací, které slouží jako prostředek rychlé difúze. Byla oddhadnuta difuzivity 88Y podél dislokací, a2sDd.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BJ - Thermodynamics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA106%2F05%2F2115" target="_blank" >GA106/05/2115: Diffusion of constituents in Mg-based advanced alloys and composites</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2009

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Alloys and Compounds

  • ISSN

    0925-8388

  • e-ISSN

  • Volume of the periodical

    471

  • Issue of the periodical within the volume

    1-2

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    7

  • Pages from-to

  • UT code for WoS article

    000265086300032

  • EID of the result in the Scopus database