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
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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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
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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
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EID of the result in the Scopus database
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