| タイトル | Growth-speed dependence of primary arm spacings in directionally solidified Pb-10 wt pct Sn |
| 著者（英） | Tewari, S. N.; Chopra, M. A. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1991-10-01 |
| 言語 | eng |
| 内容記述 | The dependence of primary arm spacings on growth speed has been investigated for cellular and dendritic arrays in directionally solidified Pb-10 wt pct Sn. The spatial arrangements of cells and dendrites, as given by their coordination number, are not very different from each other. The primary arm spacing maxima and the cell-to-dendrite transition appear to be strongly influenced by the magnitude of the solute partition coefficient (k). The planar-to-cellular transition in Pb-Sn (k = 0.50) is supercritical as compared to the subcritical behavior reported in Al-Cu (k = 0.14) and succinonitrile-acetone (k = 0.1). |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 92A26526 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/329082 |
