An investigation of the Dy-Fe-Cr phase diagram：Phase equilibria at 773 K

摘要：

Phase equilibria in the Oy-Fe-Cr system were investigated by X-ray powder diffraction(XRD)，differential thermal analysis(DTA),scanning electron microscopy(SEM)techniques and the isothermal section at 773 K was obtained．It consists of 8 single·phase regions,14 two-phase regions and 7 three-phase regions．The existence of the compound DyFe12-xCrx(1.6≤x≤3.0，space group 14/mmm)with ThMn12-type structure was confirmed．The maximum solid solubility of Cr in Fe，Dy2Fe17，Dy6Fe23，DyFe3 and DyFe2 is about 15 at．％13at．％ 6 at．％，5 at．％ and 16 at．％ respectively．

关键词： 稀土合金 晶体结构 相图 X射线衍射

作者: Huaiying Zhou Qingrong Yao Shunkan Pan

作者单位: Department of Information Material and Engineering,Guilin University of Electronic,Guangxi 541004,PR China

会议类型: 国内会议

会议名称: 第十四届全国相图会议暨国际相图与材料设计研讨会

会议地点: 长沙

会议语种:英文

页码: 235-239

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）