Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy

Minoru Nishida, T. Yamamuro, M. Nagano, Y. Morizono, Y. Kawamura

研究成果: ジャーナルへの寄稿Conference article

25 引用 (Scopus)

抄録

In order to clarify the formation process of 6H-phase in RS P/M Mg97Zn1Y2 alloy, transmission electron microscopy (TEM) observations have been carried out. The initial microstructure of RS powder consists of cellular structure. The equiaxed grains about 1 μm in average diameter are surrounded by rather wide Y and Zn rich amorphous grain boundaries. 6H-phase was observed at grain boundaries in the RS ribbon prepared at circumferential speed of 42 m/s. By lowering the circumferential speed, the 6H-phase at grain boundary in the RS ribbon changes to amorphous phase. The growth of 6H-phase starts from grain boundary in the RS ribbon annealed at 573 K for 1.2 ks. It can be concluded that the 6H-phase in RS P/M Mg97Zn1Y2 alloy crystallizes in the Y and Zn rich amorphous phase at grain boundary and then grows into grain interior during extrusion.

元の言語英語
ページ(範囲)715-720
ページ数6
ジャーナルMaterials Science Forum
419-422
発行部数II
出版物ステータス出版済み - 4 21 2003
イベントProceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 - Osaka, 日本
継続期間: 1 26 20031 30 2003

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Electron microscopy
electron microscopy
Grain boundaries
grain boundaries
microstructure
Microstructure
ribbons
Powders
Extrusion
Transmission electron microscopy
transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Nishida, M., Yamamuro, T., Nagano, M., Morizono, Y., & Kawamura, Y. (2003). Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy. Materials Science Forum, 419-422(II), 715-720.

Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy. / Nishida, Minoru; Yamamuro, T.; Nagano, M.; Morizono, Y.; Kawamura, Y.

:: Materials Science Forum, 巻 419-422, 番号 II, 21.04.2003, p. 715-720.

研究成果: ジャーナルへの寄稿Conference article

Nishida, M, Yamamuro, T, Nagano, M, Morizono, Y & Kawamura, Y 2003, 'Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy', Materials Science Forum, 巻. 419-422, 番号 II, pp. 715-720.
Nishida M, Yamamuro T, Nagano M, Morizono Y, Kawamura Y. Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy. Materials Science Forum. 2003 4 21;419-422(II):715-720.
Nishida, Minoru ; Yamamuro, T. ; Nagano, M. ; Morizono, Y. ; Kawamura, Y. / Electron microscopy study of microstructure modifications in RS P/M Mg97Zn1Y2 alloy. :: Materials Science Forum. 2003 ; 巻 419-422, 番号 II. pp. 715-720.
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abstract = "In order to clarify the formation process of 6H-phase in RS P/M Mg97Zn1Y2 alloy, transmission electron microscopy (TEM) observations have been carried out. The initial microstructure of RS powder consists of cellular structure. The equiaxed grains about 1 μm in average diameter are surrounded by rather wide Y and Zn rich amorphous grain boundaries. 6H-phase was observed at grain boundaries in the RS ribbon prepared at circumferential speed of 42 m/s. By lowering the circumferential speed, the 6H-phase at grain boundary in the RS ribbon changes to amorphous phase. The growth of 6H-phase starts from grain boundary in the RS ribbon annealed at 573 K for 1.2 ks. It can be concluded that the 6H-phase in RS P/M Mg97Zn1Y2 alloy crystallizes in the Y and Zn rich amorphous phase at grain boundary and then grows into grain interior during extrusion.",
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