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R-Fe-Co赝三元系RFe2-RCo2变温截面的研究(R=Sm0.5Dy0.5)
Research of isoplethic section in R-Fe-Co pseudoternary system
【摘要】 采用光学金相显微镜、X射线衍射和差热分析技术研究了R-Fe-Co赝三元系RFe2-RCo2变温截面(R=Sm0.5Dy0.5).该截面由2个单相区、2个两相区与2个三相区组成.截面含有两个包晶反应:L+2:7→1:3与L+1:3→1:2.(Sm,Dy)(Fe,Co)2相的点阵常数随含Co量的增加而降低.
【Abstract】 The isoplethic section in the R Fe Co pseudoternary system(R=Sm0.5Dy0.5)has been investigated by optical microscopy,X ray diffraction analysis and differential thermal analysis techniques.The isoplethic section consists of two single phase regions,two two phase regions and two three phase regions.In addition,it includes two peritectic reactions.The lattice parameter of (Sm,Dy)(Fe,Co)2phase in (Sm0.5Dy0.5)(Fe1-xCox)2 alloys decreases with increasing Co content.
【关键词】 稀土-Fe-Co;
赝三元系;
相图;
变温截面;
【Key words】 rare earth Fe Co; pseudoternary system; phase diagram; isoplethic section;
【Key words】 rare earth Fe Co; pseudoternary system; phase diagram; isoplethic section;
【基金】 国家自然科学基金资助项目(59871030)
- 【文献出处】 沈阳工业大学学报 ,Journal of Shenyang University of Technology , 编辑部邮箱 ,2002年01期
- 【分类号】TG132.27
- 【下载频次】29