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本文观察了两种成分的钯钇合金，Ｐｄ（７－５～８．０）％ Ｙ（原子分数，下同）和Ｐｄ（８．０～８．５） ％ Ｙ的显微组织结构。将Ｐｄ粉和Ｙ粉在真空感应电炉中熔炼成成分合格的合金铸锭，经９５０℃×６ｈ 真空均匀化处理后，制成厚为０－０１９ｍ ｍ 的箔材，然后施行不同的热处理。利用光学、透射电子显微镜观察其组织与微观结构。结果表明，经退火的钯钇合金中存在有序相，出现了反相畴界。有序态的Ｐｄ８ ％ Ｙ合金将比无序态的透氢速率高。
In this paper, we observed the microstructure of Pd-Y alloy, Pd (7-5 ~ 8.0)% Y (atomic fraction) and Pd (8.0 ~ 8.5)% Y . The Pd powder and Y powder were melted into the qualified alloy ingot in a vacuum induction furnace and vacuum homogenized at 950 ° C for 6h to form a foil with a thickness of 0-019m and then subjected to different heat treatments. Their microstructure and microstructure were observed by optical and transmission electron microscopy. The results show that there is ordered phase in the annealed palladium-yttrium alloy, and reverse domain boundaries appear. An ordered Pd 8% Y alloy will have a higher rate of hydrogen permeation than a disordered state.