ACTIVATION ENERGY OF FeAl ALLOYS DURING SUPERPLASTIC DEFORMATION

ACTIVATION ENERGY OF FeAl ALLOYS DURING SUPERPLASTIC DEFORMATION

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摘要ＡＣＴＩＶＡＴＩＯＮＥＮＥＲＧＹＯＦＦｅＡｌＡＬＬＯＹＳＤＵＲＩＮＧＳＵＰＥＲＰＬＡＳＴＩＣＤＥＦＯＲＭＡＴＩＯＮ①ＬｉＤｉｎｇｑｉａｎｇ，ＬｉｎＤｏｎｇｌｉａｎｇ（Ｔ．Ｌ．Ｌｉｎ）ＴｈｅＰｕｂｌｉｃＬａｂｏｒａｔｏｒｙｏｆＨｉｇｈＴｅｍｐｅｒａｔｕ... 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 forFe 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.

作者 Li Dingqiang, Lin Dongliang (T. L. Lin) The Public Laboratory of High Temperature Materials and High Temperature Testing of the State Education Commission, Shanghai Jiao Tong University, Shanghai 200030

出处《中国有色金属学会会刊：英文版》 CSCD 1997年第4期17-20,共4页 Transactions of Nonferrous Metals Society of China

关键词 FEAL INTERMETALLIC alloy SUPERPLASTICITY ACTIVATION ENERGY FeAl intermetallic alloy superplasticity activation energy

分类号 TG146.21 [金属学及工艺—金属材料]

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中国有色金属学会会刊：英文版

1997年第4期

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ACTIVATION ENERGY OF FeAl ALLOYS DURING SUPERPLASTIC DEFORMATION

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