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Cu替代Ni对快淬纳米晶Mg_2Ni型合金吸放氢动力学的影响
  • ISSN号：1002-185X
  • 期刊名称：《稀有金属材料与工程》
  • 时间：0
  • 分类：TG139.7[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]钢铁研究总院,北京100081, [2]内蒙古科技大学,内蒙古包头014010, [3]包头稀土研究院,内蒙古包头014010
  • 相关基金：National Natural Science Foundations of China （50871050 and 50961001）; Natural Science Foundation of Inner Mongolia China （2010ZD05）; High Education Science Research Project of Inner Mongolia China （NJzy08071）
作者： 张羊换[1,2], 马志鸿[1,3], 赵栋梁[1], 任慧平[2], 郭世海[1], 王新林[1]
关键词： Mg2Ni型合金, Cu替代Ni, 快淬, 微观结构, 吸放氢动力学, Mg2Ni-type alloy, substituting Ni with Cu, melt-spinning, microstructure, hydriding and dehydriding kinetics
中文摘要：

为了改善Mg2Ni型合金的吸放氢动力学性能,用Cu部分替代合金中的Ni。用快淬工艺制备了纳米晶Mg2Ni1-xCux（x=0,0.1,0.2,0.3,0.4）贮氢合金,用XRD、SEM、HRTEM分析了铸态及快淬态合金的微观结构;用自动控制的Sieverts设备测试了合金的吸放氢动力学性能。结果表明,快淬态合金具有纳米晶结构,Cu替代Ni不改变合金的主相Mg2Ni,但导致形成第二相Mg2Cu。随Cu含量的增加,合金的吸氢量先增加而后减小,但合金的放氢量随Cu含量的增加而单调增加。快淬显著提高合金的吸放氢量并改善合金的吸放氢动力学。

英文摘要：

In order to improve the hydriding and dehydriding kinetics of the Mg2Ni-type alloy, Ni in the alloy was partially substituted by element Cu. The nanocrystalline Mg2Ni1-xCux （x=0, 0.1, 0.2, 0.3, 0.4） alloys were prepared by melt-spinning technology. The structures of the as-cast and spun alloys were analyzed by XRD, SEM and HRTEM. The hydriding and dehydriding kinetics of the alloys were measured by using an automatically controlled Sieverts apparatus. The results show that all the as-spun alloys hold a nanocrystalline structure. The substitution of Cu for Ni leads to form secondary phase Mg2Cu without changing of the major phase of Mg2Ni in the alloy, The hydrogen absorption capacity of the alloys first increases and then decreases with rising of Cu content, but the hydrogen desorption capacity of the alloys monotonously grows with increasing of Cu content. The melt spinning significantly improves the hydrogenation and dehydrogenation capacity and the kinetics of the alloys.

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期刊信息
  • 《稀有金属材料与工程》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会 中国材料研究学会 西北有色金属研究院
  • 主编：张平祥
  • 地址：西安市51号信箱
  • 邮编：710016
  • 邮箱：RMME@c-nin.com
  • 电话：029-86231117
  • 国际标准刊号：ISSN：1002-185X
  • 国内统一刊号：ISSN：61-1154/TG
  • 邮发代号:52-172
  • 获奖情况:
  • 首届国家期刊奖,中国优秀期刊一等奖,中国有色金属工业优秀期刊1等奖
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  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:24715