摘要
采用真空感应炉对金属热还原法制备的V-Ti-Fe合金进行精炼,考察金属铈对精炼效果的影响。结果表明,铈可有效脱除合金中的氧杂质,减少合金内的富钛相和硅偏聚相,降低合金的成分偏析,促进合金的吸氢活化。随铈用量的增加,脱氧效果也逐渐增强,储氢容量得到提升,当铈添加量达到合金用量的5%时,氧含量降到了0.05%,最大吸氢量和有效放氢量分别达到3.36%和1.85%。
V-Ti-Fe alloy prepared by metal thermal reduction was refined in vacuum induction furnace. The effect of Ce metal on refining effect was investigated. The results show that addition of Ce can effectively remove oxygen impurity in alloy, reduce componential segregation and improve hydrogen storage capacity of alloy. Deoxidization degrees and hydrogen storage capacity rise gradually with adding of Ce. When m（Ce）/m（alloy） is up to 5%, oxygen content drops to 0.05%, and the maximum hydrogen absorption capacity and effective hydrogen desorption capacity are uo to 3.36% and 1.85%, respectively.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2015年第6期67-71,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(51404183)
陕西省教育厅专项(14JK1425)
关键词
V-Ti-Fe合金
真空精炼
杂质
成份偏析
储氢容量
V-Ti-Fe alloy
vacuum refining
impurities
composition segregation
hydrogen storage capacity
