PHASE RELATIONSHIPS IN R-Fe PSEUDOBINARY SYSTEM (R=Dy_(0.65)Tb_(0.25)Pr_(0.1))

Abstract

Abstract: The phase relationships of R-Fe pseudobinary system(R=Dy0.65Tb0.25Pr0.1) have been determined using optical microscopy,X-ray diffraction,EPMA and DTA techniques.This system contains one eutectic reaction and four peritectic reactions.The four intermetallic compounds are(Dy,Tb,Pr)Fe2,(Dy,Tb,Pr)Fe3,(Dy,Tb,Pr)6Fe23 and(Dy,Tb,Pr) 2Fe17 The homogeneity regions of these compounds shift towards rare earth-rich side of the stoichiometric composition except(Dy, Tb,Pr) 2Fe17.

Key words: rare earth-iron alloy, phase relationship, structure

WANG Bowen;WU Changheng;ZHUANG Yuzhi;JIN Ximei(Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110015,China)(Shenyang Institute of Technology,Shenyang 110023,China). PHASE RELATIONSHIPS IN R-Fe PSEUDOBINARY SYSTEM (R=Dy_(0.65)Tb_(0.25)Pr_(0.1))[J]. Acta Metallurgica Sinica (English Letters), 1996, 9(2): 109-115.

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PHASE RELATIONSHIPS IN R-Fe PSEUDOBINARY SYSTEM (R=Dy_(0.65)Tb_(0.25)Pr_(0.1))

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