4.3 Article

Non-Basal Slip Systems Operative in Mg12ZnY Long-Period Stacking Ordered (LPSO) Phase with 18R and 14H Structures

Journal

MATERIALS TRANSACTIONS
Volume 54, Issue 5, Pages 693-697

Publisher

JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.MI201208

Keywords

magnesium alloys; directional solidification; dislocation; electron backscattering diffraction; long-period stacking ordered phase

Funding

  1. MEXT of Japan
  2. Funding Program for Next Generation World-Leading Researchers of Japan Society for the Promotion of Science
  3. Kumamoto Prefecture CREATE project from Japan Science and Technology Agency
  4. Grants-in-Aid for Scientific Research [23246122] Funding Source: KAKEN

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Non-basal slip systems in the Mg12ZnY long-period stacking ordered (LPSO) phase, the operational frequency of which is increased at high-temperatures and affects the mechanical properties, were clarified. The {1 (1) over bar 00} < 11 (2) over bar0 > prism slip was identified in both 18R and 14H LPSO phases, even though they have the different lattice systems. This behavior is different from that observed in a Ni-based LPSO phase. The peculiar chemical modulation in the Mg12ZnY LPSO phase may affect the selection of operative slip systems.

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