熔体快淬Zr(V_(1-x)Fe_x)_2(x=0.15)合金的贮氢性能  

Hydrogen Storage Properties of Melt-Spun Zr(V_(1-x)Fe_x)_2(x=0.15) Alloys

作　　者：张铁邦[1] 王旭峰[1] 胡锐[1] 李金山[1] 杨晓伟[1] 薛祥义[1] 傅恒志[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《稀有金属材料与工程》2011年第10期1785-1789,共5页Rare Metal Materials and Engineering

基　　金：凝固技术国家重点实验室资助项目(38-TP-2009);西北工业大学科研基金(R0217)

摘　　要：采用非自耗真空电弧炉熔炼制备Zr(V1-xFex)2(x=0.15)母合金锭,利用单辊旋淬设备制得不同淬速的合金薄带。X射线衍射结果表明,不同淬速Zr(V1-xFex)2(x=0.15)合金均为近乎单相的C15型Laves相,熔体快淬工艺可消除铸态合金中的包晶反应残留相和枝晶偏析,得到均匀细晶组织。快淬Zr(V1-xFex)2(x=0.15)合金吸氢后的晶体结构未发生改变,饱和吸氢后的体胀率约20%,根据V’antHoff关系外推出室温下快淬合金的平衡压力低于10-5Pa量级。The master Zr（V1-xFex）2（x=0.15） alloy was prepared by the arc-melt method.The alloy was re-melted and melt-spun by single-roller melt spinning at the various copper wheel velocity.From phase analysis and microstructure investigation,it has been shown melt-spun technique could prevent the residual phases of peritectic reaction during solidification and eliminate the dendritic segregation in the as-cast state.The ribbons spun at various velocities could absorb about 2% H/M hydrogen without changing their structure.For the alloy spun at each speed,the cell volume expansion with the saturated hydrogen absorption is about 20% and the he equilibrium pressure is less than 10-5 Pa at room temperature extrapolated by Van＇t Hoff equation.

关 键 词：熔体快淬 贮氢性能 ZR基合金 吸氢热力学 吸氢动力学 

分 类 号：TG139.7[一般工业技术—材料科学与工程]