アルミニウムおよびチタン合金の高圧処理と物性の変化(<小特集>高圧力小特集)

概要

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Supersaturated solid-solution alloys of Al-Ge and Al-GeSi systems up to 10at% solute contents were prepared by means of the high pressure and high temperature solid-solutioning technique. A cylindrical specimen with size of φ 6 × 6 mm was held under a pressure of 5.4 GPa at temperatures of 400 〜 500℃ for 10 hours, for the solid-solutioning treatment, and then quenched to room temperature. The lattice constants, elastic constants, electrical resistivity, and Vicker's hardness of the specimens thus obtained were measured. The shear module of the solid-solutions decreased with increasing lattice distortion. By means of the same pressure technique, the solid-solutions of Ti-Al system up to 30at%Al were prepared from the mixed powder of pure titanium and pure aluminum. The shear modulus of the titanium alloy increased with increasing Al-contents.
社団法人日本材料学会の論文
1988-02-15