| Mg_(50)Ni_(50-x)Ti_x合金的吸放氢性能 |
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| 引用本文： | 孙俊才,季世军,厉志红. Mg_(50)Ni_(50-x)Ti_x合金的吸放氢性能[J]. 中国有色金属学报, 2000, 0(Z1) |
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| 作者姓名： | 孙俊才 季世军 厉志红 |
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| 作者单位： | 大连海事大学材料工艺研究所!大连116026 |
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| 基金项目： | 交通部科学研究基金!资助项目 ( 950 60 4 0 2 )，教育部留学回国人员科研基金!资助项目 ( 9974 70 1 ) |
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| 摘 要： | 研究了Mg50 Ni50 -xTix 合金的非晶形成能力与非晶合金电极的吸放氢性能。结果表明 :在Mg50 Ni50 -xTix合金中 ,当Ti替代Ni元素的量低于 1 5% (摩尔分数 )时 ,机械合金化能够得到几乎单一的非晶态合金 ;用Ti替代Ni形成的三元非晶合金能降低镁镍合金的平衡氢压 ;少量的Ti替代能改善合金的电化学吸放氢容量 ,使合金电极的吸放氢循环稳定性得到提高。这被认为是在三元合金中钛元素减缓了合金中镁元素的氧化腐蚀进程所致。
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| 关 键 词： | 镁镍基非晶合金 贮氢合金 吸放氢特性 |
Hydriding-dehydriding characteristics of Mg_(50)Ni_(50-x) Ti_x alloys |
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| SUN Jun cai,JI Shi jun,LI Zhi hong. Hydriding-dehydriding characteristics of Mg_(50)Ni_(50-x) Ti_x alloys[J]. The Chinese Journal of Nonferrous Metals, 2000, 0(Z1) |
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| Authors: | SUN Jun cai JI Shi jun LI Zhi hong |
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| Abstract: | The ability of amorphous formation and the hydriding dehydriding characteristics of Mg 50 Ni 50- x Ti x alloys prepared by mechanical alloying method were investigated. When x =1, 2, 5, 10, 15, the homogeneous single amorphous phase alloy can be obtained. The substitution of Ti element for Ni will decrease the equilibrium hydrogen pressure in MgNi based alloys. Not only the small amount Ti substituted alloys absorb more hydrogen in electrochemical conditions, but also those alloys show a higher durability in hydriding dehydriding cycles. It is assumed that the function of Ti element is attributed to hindering magnesium from oxidation process. |
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| Keywords: | magnesium nickel base alloys hydrogen storage alloys hydriding dehydriding |
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