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| 硼对低钴AB5型贮氢合金循环寿命的影响 | |
| 引用本文： | 张羊换 陈梅艳 王新林 王国清 祁焱 郭世海. 硼对低钴AB5型贮氢合金循环寿命的影响[J]. 稀有金属材料与工程, 2005, 34(2): 212-216 |
| 作者姓名： | 张羊换 陈梅艳 王新林 王国清 祁焱 郭世海 |
| 作者单位： | 1. 钢铁研究总院,北京,100081;包头钢铁学院,内蒙古,包头,104010 2. 包头钢铁学院,内蒙古,包头,104010 3. 钢铁研究总院,北京,100081 |
| 基金项目： | 国家自然科学基金重点项目(50131040),国家自然科学基金项目(50071050) |
| 摘 要： | 为了提高低钴AB5型贮氢合金的电化学循环稳定性，在低钴AB5型贮氢合金中加入微量的硼，用真空快淬工艺制备了稀土系低钴AB5型MmNi3.8Co0.4Mn0.6Al0.2Bx(x=0，0．1，0．2，0．3，0．4)贮氢合金，分析测试了铸态及快淬态合金的电化学性能及微观结构，研究了硼对铸态及快淬态合金微观结构及循环寿命的影响。结果表明，硼能大幅度提高铸态及快淬态低钴AB5型贮氢合金的电化学循环稳定性，但其作用机理是完全不同的。 |
| 关 键 词： | 低钴AB5型贮氢合金 铸态及快淬态 循环寿命 |
| 文章编号： | 1002-185X(2005)02-0212-05 |
| 修稿时间： | 2003-08-06 |
Effect of Boron Additive on the Cycle Life of Low-Co AB5-Type Hydrogen Storage Alloy |
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| Zhang Yanghuan,Chen Meiyan,Wang Xinlin,Wang Guoqing,Qi Yan,Guo Shihai. Effect of Boron Additive on the Cycle Life of Low-Co AB5-Type Hydrogen Storage Alloy[J]. Rare Metal Materials and Engineering, 2005, 34(2): 212-216 | |
| Authors: | Zhang Yanghuan Chen Meiyan Wang Xinlin Wang Guoqing Qi Yan Guo Shihai |
| Abstract: | In order to modify its cycle stability, a trace amount of boron was added in low-Co AB5-type hydrogen storage alloy. The low-Co AB5-type MmNi3.8Co0.4Mn0.6Al0.2B(x=0, 0.1, 0.2, 0.3, 0.4)hydrogen storage alloys were prepared by cast and rapid quenching. The x microstructures and electrochemical performances of the as-cast and quenched alloys were analyzed and measured. The effect of boron additive on the microstructures and cycle lives of the alloys were investigated comprehensively. The experimental results show that the addition of boron dramatically enhances the cycle lives of the as-cast and quenched low-Co AB5-type hydrogen storage alloys, whereas the action mechanism of boron is completely different. |
| Keywords: | low-Co AB_5-type hydrogen storage alloy as-cast and quenched cycle life |
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