低活性Fe-Cr-Mn(W,V)合金相稳定性的实验与热力学计算  

Thermodynamic analysis and experiment on phase stability of low active Fe-Cr-Mn(W,V) alloy

作　　者：余泉茂[1] 胡本芙[2] 陈焕铭[2] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]宁夏大学物理与电气信息工程学院,宁夏银川750021

出　　处：《桂林工学院学报》2003年第2期169-173,共5页Journal of Guilin University of Technology

基　　金：国家自然科学基金资助项目(P80405560)

摘　　要：采用实验和Thermo Calc热力学计算方法对4种不同成分的Fe-Cr-Mn(W,V)合金(1#、2#、3#、4#合金)的相稳定性进行了研究.实验结果表明,4种合金在623K、673K和773K下时效200h后的主导相为较稳定的奥氏体相.基于热力学自由能的Thermo-Calc计算结果表明:4种合金在实验对应温度下的金相组织为稳定的奥氏体相,计算结果与实验结果有较好的一致性.To provide reference for design alloy Fe-Cr-Mn(W,V) , a new environmental high temperature structural materials used in fusionfission reactor, phase stability of four different chemicals alloy Fe-Cr-Mn(W,V) is tested by experiment and thermodynamic calculation. It is proved that the main phase of four alloys after aged under 623K,673Kand 773Kfor 200h is austenitie. The results of ThermoCalc, which are based on Gibbs energy, show that the phases of four alloys under the same temperature are austenite. The experiment results agree with the ThermoCalc.

关 键 词：相稳定性 Fe—Cr—Mn(W V)合金 Thermo—Calc计算 

分 类 号：TG132.32[一般工业技术—材料科学与工程]