Paper Title:
X-Ray Study on Mg-Sm Alloy Produced by HPT
| Periodical | Materials Science Forum (Volumes 561 - 565) |
|---|---|
| Main Theme | PRICM 6 |
| Edited by | Young Won Chang, Nack J. Kim and Chong Soo Lee |
| Pages | 917-920 |
| DOI | 10.4028/www.scientific.net/MSF.561-565.917 |
| Citation | Masahide Gotoh et al., 2007, Materials Science Forum, 561-565, 917 |
| Online since | October, 2007 |
| Authors | Masahide Gotoh, Kazuo Kitagawa, Sergey V. Dobatkin, Yukio Hirose |
| Keywords | High Pressure Torsion (HPT), Mg-Sm Alloys, Pole Figure, Severe Plastic Deformation (SPD), X-Ray Diffraction (XRD) |
| Price | US$ 28,- |
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Abstract
The purpose of this study is to reveal the cause of hardening of magnesium base alloys by the high pressure torsion processing (HPT) using X-ray diffraction. HPT was applied to Mg base alloys of the Mg-Sm system (2.8-5.5 mass %Sm). HPT was performed under pressure 4GPa at 20 oC and 200 oC. HPT results in significant strengthening of the Mg-Sm alloys due to the formation of sub microcrystalline structure. The dynamic recrystallization was realized through the pole figure measurement and the photograph of X-ray back scattering. The Mg supersaturated solid solution decomposition during HPT was observed by the X-ray profile analysis and the calculation of lattice constants of the Mg phase.
