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Diffusion Processes in Early Stages of Precipitation in Mg-Gd and Mg- Tb Alloys

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10190376" target="_blank" >RIV/00216208:11320/13:10190376 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.scientific.net/DDF.333.51" target="_blank" >http://www.scientific.net/DDF.333.51</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.333.51" target="_blank" >10.4028/www.scientific.net/DDF.333.51</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Diffusion Processes in Early Stages of Precipitation in Mg-Gd and Mg- Tb Alloys

  • Original language description

    Early stages of precipitation were investigated in solution treated binary Mg-Tb and Mg- Gd alloys. The supersaturated solid solution of Gd (or Tb) in Mg was formed by fast quenching of the alloys from solution treatment temperature. Decomposition of thesupersaturated solid solution and precipitation effects were investigated by positron lifetime spectroscopy combined with microhardness testing. During solution treatment at elevated temperature some thermal vacancies form pairs with solute atoms. In quenched samples free vacancies are quickly annealed out, while more stable vacancies bound to solute atoms remain in the sample and enhance the diffusivity of solutes. The hardness of solution treated Mg-Tb and Mg-Gd alloys aged at ambient temperature rises due to formation of small clusters of Tb and Gd atoms. Isochronal annealing of Mg-Tb and Mg-Gd alloys leads to precipitation of coherent ?'' phase, semicoherent ?' phase and incoherent ? phase particles. It was found that natural aging

  • Czech name

  • Czech description

Classification

  • Type

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

  • CEP classification

    JG - Metallurgy, metal materials

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GAP108%2F10%2F0648" target="_blank" >GAP108/10/0648: Investigation of defects in icosahedral phases in Mg-alloys</a><br>

  • Continuities

    S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Defect and Diffusion Forum

  • ISSN

    1012-0386

  • e-ISSN

  • Volume of the periodical

    333

  • Issue of the periodical within the volume

    25 Jan 2013

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    10

  • Pages from-to

    51-60

  • UT code for WoS article

  • EID of the result in the Scopus database