Ti-10V-2Fe-3Al 合金における種々の温度での時効処理中の電気抵抗変化

概要

論文の詳細を見る
The changes in electrical resistivity and Vickers hardness during isothermal aging in near β titanium alloy Ti-10V-2Fe-3Al which is used as the aircraft structure materials are investigated. The results reveal that the electrical resistivity of this alloy decreases during isothermal aging at 603K∿813K, while the Vickers hardness increases during the aging. However, the both changes in electrical resistivity and Vickers hardness correspond to each other. Also, the results obtained by X-ray measurements show that the precipitation of α phase proceeds during isothermal aging. This implies that the change in the resistivity reflects the behaviour of α phase precipitation during aging. Further, from the data of the X-ray and resistivity measurements it is found that the activation energy for the precipitation has two different values depending on aging temperatures above 723K or below 663K.
社団法人日本鉄鋼協会の論文
1997-04-01