ACTIVATION ENERGY OF FeAl ALLOYS DURING SUPERPLASTIC DEFORMATION

来源期刊：中国有色金属学报(英文版)1997年第4期

论文作者：Li Dingqiang Lin Dongliang (T.L.Lin)

文章页码：17 - 20

Key words：FeAl intermetallic alloy; superplasticity ;activation energy

Abstract: The activation energy of large grained FeAl alloys during superplastic deformation has been investigated. The flow activation energy was measured to be about 370, 290 and 260 kJ·mol^-1 for Fe-36.5Al, Fe-36.5Al-1Ti and Fe-36.5Al-2Ti(mole fraction, %) alloys, respectively, which are much lower than the creep activation energy previously measured in FeAl alloys. Ti addition can decrease the grain size and the activation energy of FeAl alloy.