Al-Si合金の高圧力溶体化処理による弾性定数の変化

概要

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Supersaturated solid-solutioning alloys of the Al-Si system up to 15at%Si were prepared by means of high pressure and high temperature techniques. A cylindrical specimen with a size of φ6×6 mm for the solid-solutioning treatment was preserved under the pressure of 5.4 GPa and the temperature of 600℃ for 10 hours, and then quenched to room temperature. The elastic constants of thus obtained specimens were measured by a three dimensional resonance method. The Young's modulus E and shear modulus G of the solid solutions were very smaller than that of the two phase alloys, and also were varied to lower values with Si-contents. For example E=77.1 GPa of the two phase Al-10at%Si alloy was fallen to E=62.0 GPa of the solid solution. Density variations of the specimens were also discussed.
社団法人日本機械学会の論文
1985-01-25