(ZrNb)_2Fe合金相的晶体结构及成分范围  

The Composition Range and the Crystal Structure of Ternary Compound(ZrNb)_2Fe in the Zr-Nb-Fe Alloys

作　　者：唐轶媛[1,2] 韦建松[2] 黄纪蓉 零妙然[2] 梁建烈[2] 

机构地区：[1]广西有色金属及特色材料加工重点实验室,广西南宁530004 [2]广西民族大学理学院材料科学研究所,广西南宁530006

出　　处：《广西民族大学学报（自然科学版）》2012年第3期80-84,共5页Journal of Guangxi Minzu University ：Natural Science Edition

基　　金：广西自然科学基金(2011GXNSFA018030);广西高校优秀人才资助计划项目;广西教育厅科研项目(2011LX140);广西民族大学科学基金(2010ZD012;2011QD019;2011MDQN046);广西有色金属及特色材料加工重点实验宝开放课题(GXKFJ11-19)

摘　　要：为了研究更低温度下Zr-Nb-Fe三元系中(ZrNb)2Fe相存在的成分范围,熔炼了3个合金样品,其中Fe的含量保持为33.3 at.%,Nb的含量分别为5 at.%,10 at.%和15 at.%.经700℃均匀化退火720 h后,采用X射线衍射、带能谱的扫描电镜对合金进行物相及成分分析.结果表明700℃时,Nb在(ZrNb)2Fe相中的含量处于5.0at.%-13.79 at.%间;文章还给出了(ZrNb)2Fe相的晶体结构数据.To study the composition range of （ZrNb）2Fe phase at low temperatures, three samples with constant Fe content at 33.3 at. % and varied Nb content of 5 at. %, 10 at. %, 15 at. % were melted. The alloys were annealed at 700 ℃ for 720 h and then quenched into water. Phase identification and phase composition were analyzed by using X-ray diffraction, Scanning Electron Microscopy as well as Energy Disperse Spectroscopy for the alloys. （ZrNb）zFe was found to exist in the composition range from （5 - 13.79） at. % Nb with the Fe fixed at 33.3 at. % at 700℃. In addition, data of the crystal structure for （ZrNb）2Fe phase were presented in the current work.

关 键 词：Zr-Nb-Fe合金 中间化合物 成分范围 晶体结构 

分 类 号：TG146.4[一般工业技术—材料科学与工程]