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用ＡＥＳ及ＳＰＳ研究了Ｆｅ３Ａｌ与水汽及氧气表面反应动力学。表明二者的反应速度都很快，且都在１．５×１０－６Ｐａ·ｓ反应即开始当暴露量达１×１０－４Ｐａ·ｓ，水汽与Ｆｅ３Ａｌ反应达到稳定值，反应产物为Ａｌ２Ｏ３．Ｆｅ３Ａｌ与氧气的反应在１．５×１０－５Ｐａ·ｓ时达到稳定，此时主要是Ａｌ的氧化，当暴露量达３×１０－２Ｐａ·ｓ，Ｆｅ３Ａｌ与氧的反应达到第二阶段平衡，此时主要为Ｆｅ的氧化．上述表面反应动力学可用来圆满解释金属间化合物在不同环境气氛中的拉伸结果．
The surface reaction kinetics of Fe3Al with water vapor and oxygen was studied by AES and SPS. The results show that both of them react quickly, and all of them react at 1.5 × 10-6Pa · s. When the exposure reaches 1 × 10-4 Pa · s, the reaction between water vapor and Fe3Al reaches a steady value and the reaction product is Al2O3. The reaction of Fe3Al with oxygen reaches 1.5 × 10-5Pa · s, and the oxidation of Al is mainly at this time. When the exposure reaches 3 × 10-2Pa · s, the reaction between Fe3Al and oxygen reaches the second stage equilibrium, At this point the main oxidation of Fe. The above surface reaction kinetics can be used to satisfactorily explain the tensile results of intermetallics in different ambient atmospheres.