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研究了温度、初始压力、粒度对Ti33V20Cr47合金吸氢动力学性能的影响。研究发现,合金的吸氢过程控速环节为三维扩散,表观活化能为25.7±0.8kJ/mol。合金的反应速度随温度的升高而加快。由于Ti33V20Cr47合金有2个吸氢平台,在1.5MPa和2.5MPa压力下比在3.5MPa压力下更先完成吸氢。合金反应速度随合金粒度的增大而加快。原因是合金吸氢过程为放热过程,粒度越大,吸氢产生的热量越不容易耗散,温度越高,导致吸氢越快。
The effects of temperature, initial pressure and particle size on the hydrogen absorption kinetics of Ti33V20Cr47 alloy were studied. The study found that the speed control of the hydrogen absorption process for the alloy three-dimensional diffusion, the apparent activation energy of 25.7 ± 0.8kJ / mol. The reaction rate of the alloy increases with increasing temperature. As Ti33V20Cr47 alloy has two hydrogen absorption platform, 1.5MPa and 2.5MPa pressure than at 3.5MPa pressure to complete the first hydrogen absorption. Alloy reaction speed increases with the increase of alloy particle size. The reason is that the process of hydrogen absorption for the alloy is an exothermic process. The larger the particle size is, the less the heat generated by hydrogen absorption is easily dissipated. The higher the temperature, the faster the hydrogen absorption.