采用 Ｘ 射线粉末衍射和 Ｒｉｅｔｖｅｌｄ 全谱拟合分析， 较详细地研究了 Ｚｒ （ Ｍ ｎ１ － ｘ Ｎｉｘ ）２ （ｘ ＝ ０４０～０７５） 三元 Ｌａｖｅｓ 相贮氢合金中形成 Ｚｒ Ｎｉ相的类型及其晶体结构。实验结果表明： Ｚｒ Ｍ ｎ Ｎｉ合金中出现的 Ｚｒ Ｎｉ相包括 Ｚｒ Ｎｉ、 Ｚｒ９ Ｎｉ１ １ 和 Ｚｒ７ Ｎｉ１０ ３ 类， Ｚｒ Ｎｉ相的类型与合金中的 Ｎｉ含量有关。其中， Ｚｒ Ｎｉ相在 ｘ ＝ ０４０～０５０ 范围内出现， Ｚｒ９ Ｎｉ１ １ 和 Ｚｒ７ Ｎｉ１０ 相则分别在 ｘ＝ ０４５～０６０ 和 ｘ＝ ０６０～０７５ 范围内出现， Ｚｒ Ｎｉ相总量随合金中 Ｎｉ含量的增加而增加。 X-ray powder diffraction and Rietveld full-spectrum fitting analysis were used to study the formation of ZrNiZnTiO_2 in the ternary Laves phase hydrogen storage alloys of Zr (M n1 - x Nix) 2 (x = 040 ~ 075) The type of phase and its crystal structure. The experimental results show that the ZrNi phases in ZrMnn alloy include Zr Ni, Zr9 Ni1 1 and Zr7 Ni10 3. The type of ZrNi phase is related to the Ni content in the alloy. Among them, Zr Ni phase appears in the range of x = 040 ~ 050, and Zr9 Ni1 1 and Zr7 Ni10 phases are in the range of x = 045 ~ 060 and x = 060 ~ 075 respectively Appears, the total amount of Zr Ni phase increases with the Ni content in the alloy increases.