Zr－Nb合金氧化膜物相及结构分析

Phase and Structural Analysis of the Oxide Film in Zr-Nb Alloys

摘要:

研究了Ｚｒ—２．５Ｎｂ和Ｚｒ—１．０Ｎｂ—０．５Ｆｅ合金的氧化膜结构。ＸＲＤ分析表明，Ｚｒ—２．５Ｎｂ合金氧化膜主要由单斜型（ＺｒＯ２）Ｍ组成，还存在（ＺｒＯ２）ｘ变态。对Ｚｒ—１．０Ｎｂ—０．５Ｆｅ合金的氧化膜进行了ＴＥＭ分析，得到了清晰的晶粒及孪晶亚结构。

Abstract:

he structures of the oxide film have been studied for Zr-2.5Nb and Zr-1.0Nb-0.5Fe alloys. XRD analysis shows that the oxide film of Zr-2.5Nb alloy consists of monoclinic ZrO2 ((ZrO2)M) and (ZrO2)x. The oxide film of Zr-1.0Nb-0.5Fe alloy has been investigated by means of TIM. Clear grain and twin-substructure have been observed in the oxide film of Zr-1.0Nb-0.5Fe alloy.