TEM observation of precipitates in a Mg-Gd-Sc alloy with high content of Sc

Takafumi Fujii*, Tokimasa Kawabata, Kenji Matsuda, Susumu Ikeno

*この論文の責任著者

研究成果: 書籍の章/レポート/会議録会議への寄与査読

1 被引用数 (Scopus)

抄録

Precipitates in a Mg-Gd-Sc alloy with high Sc content (up to 13mass%) were examined by means of transmission electron microscopy. Plate-like precipitates appeared during the early stages of aging of specimens aged at 573 K. The plate-like precipitates lay on the {11̄00 } magnesium matrix planes, and were similar to the β1 phase and β phase in the counterpart Mg-Gd-Zr alloy aged at 523 K. These precipitates had a high Sc content. Particle-shaped precipitate were observed alongside the plate-like precipitates, unlike the case in Mg-Gd alloys. The contrasts of the plate-like precipitates became longer and the number density of precipitate contrasts increased with increasing aging time at 573 K up to the point where the maximum hardness was attained. We suggest that the plate-like precipitates contribute to the increased hardness of Mg-Gd-Sc alloys with a high content of Sc.

本文言語英語
ホスト出版物のタイトルPRICM7
出版社Trans Tech Publications Ltd
ページ627-630
ページ数4
ISBN(印刷版)0878492550, 9780878492558
DOI
出版ステータス出版済み - 2010
イベント7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, オーストラリア
継続期間: 2010/08/022010/08/06

出版物シリーズ

名前Materials Science Forum
654-656
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

学会

学会7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
国/地域オーストラリア
CityCairns, QLD
Period2010/08/022010/08/06

ASJC Scopus 主題領域

  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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