| タイトル | Gibbs free energy difference between the undercooled liquid and the beta phase of a Ti-Cr alloy |
| 著者（英） | Ohsaka, K.; Trinh, E. H.; Holzer, J. C.; Johnson, W. L. |
| 著者所属（英） | NASA Hugh L. Dryden Flight Research Facility|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1992-03-02 |
| 言語 | eng |
| 内容記述 | The heat of fusion and the specific heats of the solid and liquid have been experimentally determined for a Ti60Cr40 alloy. The data are used to evaluate the Gibbs free energy difference, delta-G, between the liquid and the beta phase as a function of temperature to verify a reported spontaneous vitrification (SV) of the beta phase in Ti-Cr alloys. The results show that SV of an undistorted beta phase in the Ti60Cr40 alloy at 873 K is not feasible because delta-G is positive at the temperature. However, delta-G may become negative with additional excess free energy to the beta phase in the form of defects. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 92A27246 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/328950 |
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