時効したCu-Be合金のKb値とかたさの相関性について

概要

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In this paper, the relation between K_b Value and hardness of aged Cu-Be alloys during the aging process is reported. Four aging temperatures of 250゜, 280゜, 290゜ and 310℃ were selected, and specimens of A type (without cold rolling) and H type (38% cold rolled) were aged for various aging times. Electrical resistivity, K_b value and micro-Vickers hardness were measured on these aged specimens. Moreover, the integrated X-ray intensities were measured from the diffraction intensity curves of intermediate γ' phase and stable γ phase, and the half-value breadth for α matrix phase was determined during the aging process. It was found that a linear relationship holds between K_b value and hardness throughout the aging process. Furthermore, the optimum aging time to give the maximum K_b values was obtained for four aging temperatures.
社団法人日本材料学会の論文
1975-04-15