中文摘要：

实验测量了氚化锆时效过程中的3He释放以及结构变化。实验结果表明,面心四方结构ZrH1.801相的氚化锆在n（3Hegen）/n（Zr）小于0.27的时效期间,3He的释放系数处于10-6～10-5量级,生成的3He几乎全部被氚化物捕获。受季节温差的影响,3He的释放系数呈波浪式变化。随n（3Hegen）/n（Zr）的增加,氚化锆的晶胞体积经历了增大、维持恒定以及减小3种变化。

英文摘要：

Helium release and structure evolution of Zr tritide with fct-ZrH1.801 phase were investigated.It proves that the 3He release fraction is between 10-6 and 10-5 while n（3Hegen）/n（Zr）is smaller than 0.27.The 3He generated is trapped deeply in the tritide.The release fraction varies in wave with the temperature change between summer and winter.X-ray diffraction results show that the cell volume experiences increase,invariablenes and decrease with the n（3Hegen）/n（Zr）increasing.