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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 8    No. 2    June 1998

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EFFECTS OF NITRIDING TEMPERATURE ON MAGNETIC PROPERTIES OF MELT-SPUN Pr1.4Fe10.5Mo1.5Nx AND ITS PHASE ANALYSIS
Zhang Shengen1,2  Zhang Jiuxing1 Yang Hongchuan1 and Zhou Meiling1,2

1.College of Materials Science and Engineering,BeijingPolytechnic University, Beijing100022, P. R. China;
2.Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083, P. R. China

Abstract:The phase transition of melt-spun Pr1.4Fe10.5Mo1.5 and its nitrides have been studied by means of XRD and TEM. The phases of the alloy are α-Fe(Mo)(containing a little of other phases), Pr(Fe,Mo)12, Pr(Fe,Mo)7, Pr(Fe,Mo)12 and Pr(Fe,Mo)12 Nx in turn after having been arc melted in a purified argon, homogenized, melt-spun, annealed and nitrided. The magnetic properties are obtained on vibrating sample magnetometer(VSM). After annealing at 760℃ for 30 min and nitrided at 600℃ for 2 h,Br is 0.349 T and Hc is 115.4 kA·m-1.

 

Key words: melt-spun Pr(Fe,Mo)12Nx phase analysis magnetic properties

ISSN 1672-7029
CN 43-1423/U

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