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Creep in ODS copper reinforced with alumina short fibres - DRS copper.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F03%3A07033037" target="_blank" >RIV/68081723:_____/03:07033037 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Creep in ODS copper reinforced with alumina short fibres - DRS copper.

  • Original language description

    Creep in copper dispersion strengthened with fine alumina particles (oxide dispersion strengthened (ODS) Cu) and reinforced with alumina short fibresůůa DRS Cu compositeůůis investigated in two temperature intervals, namely 673ů773 K, lower temperature interval (LTI) and 923ů1023 K, higher temperature interval (HTI). It is shown that in both intervals creep is associated with true threshold stresses decreasing with increasing temperature more strongly than the shear modulus of copper. The true thresholdstress in the composite is higher than that in the composite matrix (i.e. ODS copper) by a factor , by which the flow stress in the matrix is reduced due to load transfer. The minimum creep strain rate is found to be dislocation core diffusion controlled in LTI and lattice diffusion controlled in HTI. High values of the apparent activation energies are fully explained in terms of the temperature dependence of the true threshold stress in LTI as well as in HTI. Also the values of the app

  • Czech name

  • Czech description

Classification

  • Type

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

  • CEP classification

    JI - Composite materials

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/IBS2041001" target="_blank" >IBS2041001: Degradation of properties and lifetime assessment of engineering materials under mechanical loading</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2003

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Material Science and Engineering A. A

  • ISSN

    0921-5093

  • e-ISSN

  • Volume of the periodical

    355

  • Issue of the periodical within the volume

    1-2

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    10

  • Pages from-to

    267-276

  • UT code for WoS article

  • EID of the result in the Scopus database