Influence of aluminum addition on isochronal aging of Ti-20 mass%V alloy.
スポンサーリンク
概要
- 論文の詳細を見る
Effect of Al addition on the isochronal aging of Ti-20 mass%V (Ti-20V) alloy was investigated by resistivity and hardness measurements, diffraction methods and structural observations. Ti-20V alloy shows two resistivity minima corresponding to precipitation of isothermal ω phase and that of α phase. The resistivity minimum due to ω phase precipitation gradually shifts to higher temperature with Al content and disappears in Ti-20V-8Al alloy. The Al addition above 8% causes the resistivity decrease due to only the α precipitation. These have been confirmed by the diffraction methods, and explained by suppression of ω and enhancement of α precipitation by Al addition. In the Ti-20V alloy, ω precipitation causes age-hardening, whereas α precipitation causes softening. Contrary to this, in Al added alloys, the contribution of α precipitation to hardness increases with Al content. TEM observation discloses 400nm long α plates in Ti-20V and fine, less than 30nm, α platelets, in Ti-20V-10Al alloys aged up to 773K.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
- Mechanical and wear properties of SiC whisker/ADC12 aluminum alloy composites fabricated by die casting.
- Joining of aluminum and ceramics.
- タイトル無し
- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.