Influence of gravity on monotectic and eutectic growth

Ichiro Aoi*, Makoto Yoshida, Makoto Ishino, Hideo Nakae

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The influence of gravity on the microstructure of unidirectionally solidified Cu-Pb monotectic, Ag-Si and Fe-C eutectic alloys is studied. In order to examine the influence of gravity in a 1 g environment, both the upward (opposite to direction of gravity) and downward (direction of gravity) unidirectional solidifications are carried out. The results are as follows: (1) For the upward solidified Ag-Si eutectic alloy, the eutectic Si continuously grows. On the other hand, in the downward solidified Ag-Si alloy, the Si grows discontinuously and disperses into the α-Ag matrix. (2) No morphological difference in the eutectic growth is observed between the upward and downward solidified Fe-C eutectic alloys. (3) In the case of the upward solidified Cu-Pb monotectic alloy, a banded structure, which consists of Pb-rich layers and Cu-rich layers, is observed. However, such a banded structure is not observed in the downward specimen. (4) The banded structure is not found in the upward solidified Cu-Pb-0.05 mass%Al and Cu-Pb-0.1 mass%al alloys. In the Cu-Pb-0.05 mass%Al alloy, a fibrous L2 phase grows continuously parallel to the growth direction at low growth rate. Only 500 mass ppm addition of aluminum induces the morphological change of the monotectic L2 phase.

本文言語English
ホスト出版物のタイトルProceedings of the Second International Conference on Processing Materials for Properties
編集者B. Mishra, C, Yamauchi, B. Mishra, C. Yamauchi
ページ1017-1022
ページ数6
出版ステータスPublished - 2000 12 1
外部発表はい
イベントProceedings of the Second International Conference on Processing Materials for Properties - San Francisco, CA, United States
継続期間: 2000 11 52000 11 8

出版物シリーズ

名前Proceedings of the Second International Conference on Processing Materials for Properties

Conference

ConferenceProceedings of the Second International Conference on Processing Materials for Properties
国/地域United States
CitySan Francisco, CA
Period00/11/500/11/8

ASJC Scopus subject areas

  • 工学(全般)

フィンガープリント

「Influence of gravity on monotectic and eutectic growth」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル