Al-Ge合金の時効に関する研究
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概要
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The precipitation hardening behavior of Al-4wt%Ge alloys has been investigated by means of hardness measurement and electron microscope observations, and the following results are obtained. 1. A rapid hardening is observed after 10 hour at 130℃. 2. Two types of precipitates are observed. One is triangular or hexagonal plate shaped precipitate with one side of that polygon directed to the <110> direction on the （111） plane, and the other is rod shaped precipitate with its direction to the <110> direction. 3. Precipitation hardening of Al-4wt%Ge alloys is caused by those precipitates. 4. Those precipitates are Germanium with the direction of its main axies coincided to that of matrix Aluminum by the electron microprobe diffraction.
- 1971-03-30
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