Fe-Mn-Al系相图1200℃和1300℃相平衡的研究  

On the Phase Equilibria of the Fe-Mn-Al System at 1200℃ and 1300℃

作　　者：刘兴军[1] 陈辉[1] 郝士明[1] 

机构地区：[1]东北工学院材料科学与工程系

出　　处：《东北工学院学报》1993年第3期249-252,共4页

基　　金：国家自然科学基金

摘　　要：采用双层异压石英管技术成功地对两种Fe-Mn-Al系三元扩散偶进行了1300℃平衡扩散处理;并利用扩散偶-电子探针法测得相平衡成分,获得了该系1200℃下α/γ和1300℃下α/γ,α/L的相平衡关系和相应的相图等温截面。实测数据支持相应截面的热力学计算结果,并为进一步改进热力学计算提供了依据。A technique with double-layer differential pressure quartz tube was applied successfully to the diffusion treatment for ternary diffusion couples in the Fe-Mn-Al system at 1300℃. The phase equilibrium compositions were determined by means of diffusion couple-EPMA,and phase equilibria of α/γ at 1200℃ and α/γ .a/L at 1300℃ are obtained and relevant isothermal sections on the Fe-Mn side are constructed. Measuring results not only support the calculated ones but are available to the improvement of thermodynamic calculation.

关 键 词：Fe-Mn-Al系 相图 等温截面 相平衡 

分 类 号：TG113.14[金属学及工艺—物理冶金]