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本文通过制作扩散偶研究二氧化铀在钼铌合金中的扩散情况,研究钼铌合金与二氧化铀的高温相容性。本工作共研究了3种钼合金样品与二氧化铀的相容性,这3种钼铌合金分别为:多晶TZM合金、Mo-3Nb及Mo-6Nb单晶。试验时通过在样品中间穿钼合金中心杆然后焊接的方式制成扩散偶。扩散偶放入样品罐之中,放入真空炉内进行长时间的高温扩散试验。试验温度为1600℃,制
This article studies the diffusion of uranium dioxide in molybdenum-niobium alloys through the fabrication of diffusion couples, and studies the high-temperature compatibility of molybdenum-niobium alloys with uranium dioxide. The work of a total of three samples of molybdenum alloy with uranium dioxide compatibility, these three molybdenum and niobium alloys are: polycrystalline TZM alloy, Mo-3Nb and Mo-6Nb single crystal. Test by the middle of the sample through the center of the molybdenum alloy rod and then welded to make diffuse even. Diffusion even into the sample tank into the vacuum furnace for a long time high temperature diffusion test. The test temperature is 1600 ℃, the system