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Combination of in-situ diffraction experiments and acoustic emission testing to understand the compression behavior of Mg-Y-Zn alloys containing LPSO phase under different loading conditions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10388621" target="_blank" >RIV/00216208:11320/18:10388621 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.ijplas.2018.03.004" target="_blank" >https://doi.org/10.1016/j.ijplas.2018.03.004</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.ijplas.2018.03.004" target="_blank" >10.1016/j.ijplas.2018.03.004</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Combination of in-situ diffraction experiments and acoustic emission testing to understand the compression behavior of Mg-Y-Zn alloys containing LPSO phase under different loading conditions

  • Original language description

    The effect of the orientation of the non-recrystallized grains (non-DRX) and the LPSO phase on plasticity in extruded MgY2Zn1 alloy with a bimodal grain structure have been studied in-situ using the combination of synchrotron diffraction and acoustic emission techniques during compression tests. The adaptive sequential k-means (ASK) procedure was applied to analyze the acoustic emission signal. This method can successful separate the signal for each possible deformation systems. Combining both techniques, the deformation mechanisms that take place during the compression tests under different loading directions have been distinguish. Independently of the loading direction, the beginning of the macroscopic plasticity is always controlled by the activation of basal slip system in the DRX grains. However, highly oriented non-DRX grains and LPSO phase have a strong influence over the compressive deformation of the MgY2Zn1 alloy. The basal planes in the non-DRX grains were oriented parallel to the extrusion direction (ED). Thus, the activation of the {10 (1) over bar2} &lt; 10 (11) over bar &gt; extension twinning was found to be significant only in the ED mode. In the other two loading cases, TD and 45, the activation of non basal slip systems has been detected. On the other hand, the reinforcing effect of the elongated LPSO phase is the most effective, if the loading axis is aligned with the fiber direction (extrusion direction) since the load transfer mechanism is more effective. In this loading case, the LPSO can be plastically deformed due to kinking. This deformation mode has been isolated by the ASK procedure and characterized by in-situ scanning electron microscopy.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

    International Journal of Plasticity

  • ISSN

    0749-6419

  • e-ISSN

  • Volume of the periodical

    106

  • Issue of the periodical within the volume

    106

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    22

  • Pages from-to

    107-128

  • UT code for WoS article

    000434744000007

  • EID of the result in the Scopus database

    2-s2.0-85044048868