添加Ti0.9Zr0.1Mn1.5复合球磨对Ti9.6V86.4Fe4 合金储氢性能的影响

系统研究了Ti9.6V86.4Fe4储氢合金中掺入10%（质量分数）的Ti0.9Zr0.1Mn1.5进行复合球磨对其相结构及储氢性能的影响.X射线衍射分析表明,Ti9.6V86.4Fe4铸态合金具有单一的体心立方（BCC）结构固溶体相,当添加10%的Ti0.9Zr0.1Mn1.5复合球磨后,复合物由BCC主相和C14型Laves第2相组成.扫描电子显微镜及X射线能量色散谱仪分析表明,Ti9.6V86.4Fe4合金粉颗粒表面包覆了一层Ti0.9Zr0.1Mn1.5微粒.储氢性能测试表明,Ti9.6V86.4Fe4中掺入10%的Ti0.9Zr0.1Mn1.5复合球磨后,虽然室温最大吸氢量（质量分数）从3.86%略微降低至3.61%,但其有效储氢量（质量分数）由2.01%提高到2.11%,活化性能和P-C-T曲线平台特性都得到了明显改善.

Influence of Composite Ball-Milling with Ti0.9Zr0.1Mn1.5 on Hydrogen Storage Properties of Ti9.6V86.4Fe4 Alloy

The influence of composite ball-milling with 10%(mass fraction)Ti0.9Zr0.1Mn1.5 on the phase structure and hydrogen storage properties of Ti9.6V86.4Fe4 alloy were investigated.X-ray diffraction analysis shows that the as-cast Ti9.6V86.4Fe4 alloy consists of single solid solution phase with body-centered cubic (BCC) structure,and the ball-milled composite(Ti9.6V86.4Fe4 10% Ti0.9Zr0.1Mn1.5) has a C14 type Laves secondary phase besides the BCC main phase.Scanning electron microscopy and energy dispersive X-ray spectrometer analysis show that there is a layer of Ti0.9Zr0.1Mn1.5 particles on the surface of the composite alloy.Compared with the as-cast Ti9.6V86.4Fe4 alloy,the effective hydrogen storage capacity of the ball-milled composite at room temperature increases from 2.01 % to 2.11 %,the activation behavior and P-C-T plateau characteristics are also improved,while the maximum hydrogen absorption capacity decreases from 3.86 % to 3.61%.