Influence of quasicrystal I-phase on twinning of extruded Mg-Zn-Y alloys under compression
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10388666" target="_blank" >RIV/00216208:11320/18:10388666 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.actamat.2018.03.060" target="_blank" >https://doi.org/10.1016/j.actamat.2018.03.060</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.actamat.2018.03.060" target="_blank" >10.1016/j.actamat.2018.03.060</a>
Alternative languages
Result language
angličtina
Original language name
Influence of quasicrystal I-phase on twinning of extruded Mg-Zn-Y alloys under compression
Original language description
The interaction of the I-phase with twins during compression has been studied in a Mg-6Zn-1Y (wt.%) alloy using the combination of Synchrotron Radiation Diffraction and Acoustic Emission experiments during compression tests. The I-phase occurs as coarse particles at grain boundaries and nanosized precipitates within magnesium grains. Their interaction with twins depends on their shape and size. The presence of coarse I-phase particles with higher Young Modulus requires an additional stress for the activation of twinning since they induce tensile residual stresses in the magnesium matrix. Besides twinning, the basal and non-basal slip systems are also activated. Non-basal slip is observed after macroscopic yield stress within twins. The fine I-phase precipitates within grains interacts with the dislocations and the twins. In the latter case a back-stress arises, which acts against the compressive applied stress. This back stress hinders the twin growth more than the effect of the coarse particles.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA16-12075S" target="_blank" >GA16-12075S: Optimization of mechanical properties of advanced high-strength magnesium alloys</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Materialia
ISSN
1359-6454
e-ISSN
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Volume of the periodical
151
Issue of the periodical within the volume
151
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
271-281
UT code for WoS article
000432760300025
EID of the result in the Scopus database
2-s2.0-85045453727