【摘要】 用ＴＥＭ、Ｘ－Ｒａｙ、ＳＥＭ等技术研究了Ｎｉ４２Ｃｒ６Ｆｅ玻封合金在高温湿Ｈ＿２中形成的氧化膜及氧化物晶须的结构。结果表明：氧化膜主要由Ｃｒ＿２Ｏ＿３和（Ｆｅ，Ｍｎ）Ｃｒ＿２Ｏ＿４两相组成，氧化膜底层是以Ｃｒ＿２Ｏ＿３为主的组织，氧化膜在层是以（Ｆｅ，Ｍｎ）Ｃｒ＿２Ｏ＿４为主的组织；Ｓｉ在氧化膜与合金界面分布，Ａｌ则在内氧化层中形成内氧化物质点；氧化膜表面生长的氧化物晶须的杆部为（Ｆｅ，Ｍｎ）Ｃｒ＿２Ｏ＿４单晶，头部为Ｎｉ＿３Ｆｅ型金属间化合物。更多还原

【Abstract】 The structure of oxide film and oxidewhisker on Ni42Cr6Fe sealing anoy after oxidation inwet hydrogen at high teniperature are st udied usingTEM,X-Ray and SEM methods.The resultsindicate that oxide film is mainly colnposed of Cr₂O₃and（Fe,Mn）Cr₂O₄ spinel。The outer oxide layer iscoarse（Fe,Mn）Cr₂O₄ spinel grains mainly and thebase oxide layer is fine Cr₂O₃ grains mainly.Si-oxideis on the interface of meral and oxide,Al is formed tointernal oxidation in the surface of alloy,The pole ofoxide whisker on the oxide film is the spinel（Fe,Mn ）Cr₂O₄ monocrystal,the head of oxide whisker isNi₃Fe更多还原