摘要
Microstructure and phase transformation in the Al-Cu-Fe alloys of the approximate compositional range of 20 - 50 at.% Cu and 2 - 10 Fe at.% have been investigated from samples quenched from their respective temperatures by means of different thermal analysis, magnetothermal analysis, scanning electron microscopy, electron probe analysis and powder X-ray diffraction. Representative phase transformations categorized as polymorphic, discontinuous precipitation, quasi-binary eutectoid, and ternary transitional U-type phase transformation are presented. These phase transformations were found to have a common feature which consumes the phase and appears the phase. A schematic diagram was proposed to demonstrate the transition processes with decreasing temperature.
Microstructure and phase transformation in the Al-Cu-Fe alloys of the approximate compositional range of 20 - 50 at.% Cu and 2 - 10 Fe at.% have been investigated from samples quenched from their respective temperatures by means of different thermal analysis, magnetothermal analysis, scanning electron microscopy, electron probe analysis and powder X-ray diffraction. Representative phase transformations categorized as polymorphic, discontinuous precipitation, quasi-binary eutectoid, and ternary transitional U-type phase transformation are presented. These phase transformations were found to have a common feature which consumes the phase and appears the phase. A schematic diagram was proposed to demonstrate the transition processes with decreasing temperature.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2004年第5期234-238,共5页
Transactions of Materials and Heat Treatment
关键词
Al-Cu-Fe合金
相位变换
热分析
磁化率
扫描电子显微术
X射线衍射
Phase transformations
Al-Cu-Fe
thermal analyses
magnetic susceptibility
scanning electron microscopy
powder X-ray diffraction.
