吸铸对钛钒铬基合金结构和贮氢性能的影响

研究了吸铸对钛钒铬基合金结构和贮氢性能的影响。结果表明：吸铸有利于钛钒铬基合金单一BCC结构固溶体相的形成，使合金相的点阵常数略有减小；吸铸使钛钒铬基合金的放氢压力平台的斜率因子Sf降低，平台压力略有降低，活化性能变差，还使合金吸氢量和放氢量均有提高；随着Cr含量的增加，合金放氢的平台压力逐渐升高，放氢量提高。

Effect of Suction Cast on Structure and Hydrogen Storage Properties of TiVCr Based Alloy

The influence of Suction cast on phase structures and hydrogen storage properties of TiVCr based alloys has been investigated in this work. It is showed that suction cast is beneficial to the formation of a single solid solution phase with BCC structure resulting in the slight decrease of the lattice parameters. The slope coefficient Sf and the desorbing plateau pressure of the alloys were decreased and the capacity of absorption and desorption was increased by suction cast. Also, the activation performances of the alloys were reduced by suction cast. The desorbing plateau pressure and the capacity of desorption of the alloys increased with increasing Cr content.