机构地区: 四川大学材料科学与工程学院
出 处: 《功能材料》 2009年第4期632-634,共3页
摘 要: 考察了V40Ti26Cr25Fe8Mo1贮氢合金的循环放氢性能,发现合金放氢量随循环次数呈指数衰减。对合金循环过程中的结构变化分析表明,合金一氢化物的结构在循环过程中由BCC结构向BCT结构转变,同时其晶格应变增长遵循指数增长模型,并且合金放氢量与晶格微应变呈线性关系。 Cycle durability of V40 Ti26 Cr25 Fe8 Mo1 alloy was investigated. It is found that desorption capacity shows exponential decay with increasing cycle number. According to XRD analyze, the crystal structure of mono-hydride of alloy transformed from BCC to BCT during cycle process. The increase of micro strain of mono-hydride followed exponential growth and the desorption capacity showed linear relationship with micro strain of monohydride.