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研究了甩带速度对40Ti-40V-10Cr-10Mn合金微观结构和储氢特性的影响。物相分析表明,未经甩带的样品仅由体心立方结构的V基固溶体(BCC相)组成;10 m/s和30 m/s甩带样由BCC相、C14型Laves相组成;20m/s甩带样则由BCC相、C15型Laves相组成。动力学机制研究表明,未甩带样及10m/s和30m/s甩带样的吸氢过程均受化学反应控制,而20m/s甩带样的吸氢过程则受到三维扩散控制。随着甩带速度的提高,样品在室温下的吸氢量先减小后增加,其中20m/s甩带样的最小;甩带样在室温下的放氢量均大于未甩带样,且10m/s甩带样在室温下的放氢量最大,吸放氢迟滞效应也得到改善;随着甩带速度的增加,样品在373K下的放氢量先减小后增加,其中20m/s甩带样的最小,而10m/s甩带样的放氢量接近于未甩带样。
The influence of strip speed on the microstructure and hydrogen storage properties of 40Ti-40V-10Cr-10Mn alloy was investigated. The phase analysis shows that the unloaded specimen consists of VCC solid solution (BCC phase) only; the samples of 10 m / s and 30 m / s are composed of BCC phase and C14 Laves phase; / s rejection with samples from the BCC phase, C15 Laves phase composition. The kinetic mechanism studies show that the hydrogen absorption process of unloaded and 10m / s and 30m / s rejection are controlled by chemical reaction, while the 20m / s rejection of hydrogen absorption is controlled by three dimensional diffusion. With the increase of rejection rate, the amount of hydrogen absorption in the sample decreases first and then increases at room temperature, of which the rejection of 20m / s is the smallest; the amount of hydrogen released by the rejection at room temperature is greater than that of the rejection at At 10m / s, the amount of hydrogen released was the largest at room temperature, and the hydrogen absorption and desorption hysteresis was also improved. With the increase of the rejection rate, the amount of hydrogen released at 373K first decreased and then increased, of which 20m / s Rejection with the smallest, and 10m / s rejection with a similar amount of hydrogen discharge is not rejection-like.