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- Title
Deformation Behavior of Binary Mg-Y Alloy Under Dynamic Compression Loading.
- Authors
Nagao, Masaki; Terada, Tomofumi; Somekawa, Hidetoshi; Singh, Alok; Mukai, Toshiji
- Abstract
This study examines Mg-Y binary alloys at a high strain rate of approximately 1 × 10 s in compression by using a split Hopkinson pressure bar to elucidate the effect of yttrium in magnesium on mechanical anisotropy and other properties. As a result of high strain rate compression, Mg-0.6 at.%Y alloy showed less mechanical anisotropy, a lower strain hardening rate, and a larger compressive strain to failure of approximately 0.4, as compared with pure magnesium. Microstructure analysis by scanning electron microscopy/electron backscatter diffraction revealed that the addition of yttrium could release the stress concentration at the interface between the matrix and the { $$ 10\bar{1}2 $$ } c-axis tension twins by the formation of subgrains and lattice rotation around the c-axis during dynamic compression.
- Subjects
MAGNESIUM-yttrium alloys; BINARY metallic systems; MATERIALS compression testing; HOPKINSON bars (Testing); SCANNING electron microscopy
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2014, Vol 66, Issue 2, p305
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-013-0854-2