快淬对Ti-V基BCC相合金相结构和储氢性能的影响  

Effect of Rapid Quenching on Phase Structure and Hydrogen Storage Performance of Ti-V-based BCC Phase Alloys

作　　者：余学斌[1] 吴铸[1] 夏保佳[1] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050

出　　处：《稀有金属材料与工程》2005年第7期1047-1050,共4页Rare Metal Materials and Engineering

基　　金：国家"863"后续能源项目资助(2003AA515022)

摘　　要：研究了快淬作用对Ti-28V-15Mn-10Cr合金的相结构和储氢性能的影响。XRD实验结果表明,快淬处理使得合金由BCC和C14Laves两相结构转变为单一的BCC相结构,同时合金的晶格常数随着快淬冷速的增加而增大。快淬作用能显著改善Ti-28V-15Mn-10Cr合金的吸放氢平台特性,从而导致合金放氢量的增加。然而,快淬处理也使得合金的放氢平台压下降以及活化性能变差。The effect of rapid quenching on phase structure and hydrogen storage performance of Ti-28V-15Mn-10Cr alloy is investigated. X-ray diffraction (XRD) results show that two phases of BCC and C14 Laves of the as-cast alloy are transformed into a single BCC phase after rapid quenching treatment. The lattice parameters of the alloy increase with increasing of quenching rate. It results in a flatter hydrogen absorption-desorption plateau and a lower hydrogen absorption-desorption plateau pressure. With increasing quenching rate, the activation of Ti-28V-15Mn-10Cr alloy becomes worse.

关 键 词：Ti-V基合金 快淬作用 BCC相 相结构 储氢性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程]