Experimental investigation and thermodynamic optimization of the Al-Fe-V system
The liquidus surface projection of the Al-Fe-V system was investigated using X-ray powder diffraction (XRD), scanning electron microscopy (SEM) with energy dispersive spectrometer (EDS).In addition, the Al-Fe-V system was preliminarily assessed by means of the CALPHAD technique on the basis of experimental isothermal section at 773 K in literature and experimental liquidus surface projection in the present work.The solution phases (liquid and bcc) were treated as the substitutional solution.The compounds, Al10V, Al8V5, Al7V, Al3V, Al23V4, AlFe, Al5Fe2, Al13Fe4, and Al2Fe, which had a homogeneity range of the third element Fe or V, were treated as the formulae, Al10(Fe,V), Al8(Fe,V)5,Al7(Fe,V),Al3(Fe,V), Al23(Fe, V)4, Al(Fe,V),Al5(Fe,V)2,Al13(Fe, V)4, and Al2(Fe,V),by two-sublattice model with Al on the first sublatttice and Fe and V on the second sublatttice.The preliminary thermodynamic parameters of the Al-Fe-V system were obtained.
Al-Fe-V ternary system Thermodynamic optimization liquidus surface projection
肖明华 郭翠萍 李长荣 杜振民
北京科技大学材料与科学工程学院
国内会议
桂林
英文
168-172
2015-11-03（万方平台首次上网日期，不代表论文的发表时间）