@article{oai:jaxa.repo.nii.ac.jp:00034669, author = {村川, 潔 and MURAKAWA, Kiyoshi}, issue = {6}, journal = {東京大學理工學研究所報告}, month = {Feb}, note = {Beryllium-copper and beryllium-tin-copper alloy sheets were solution treated at 800℃ or 820℃ and quenched in water or oil, and then annealed at temperature below the recrystallization temperature. The bending plasticity and Vickers hardness of these samples were measured as functions of annealing temperature. On the curves plotting Vickers hardness versus the annealing temperature a small maximum at about 160℃ (annealing time was one hour in each case) was found. It is highly improbable that this hardening is due to any impurity and it is probable that this hardening occurs prior to two-dimensional and three-dimensional precipitations. (Received December 11, 1952), 資料番号: SA2410135000}, pages = {325--328}, title = {ベリリウム銅合金板における析出硬化}, volume = {6}, year = {1953} }