Acta Metall Sin  1992, Vol. 28 Issue (10): 53-59    DOI:

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PREPARATION OF Sm-Fe ALLOY USING MECHANICAL ALLOYING AND ITS CRYSTALLIZATION AND NITROGINATION

LU Manqi; SONG Qihong; SUN Wensheng; MIAO Weifang; WANG Kai yang; JWEI Wenduo; WANG Longbao (Institute of Metal Research; Academia Sinica; Shenyang)

LU Manqi; SONG Qihong; SUN Wensheng; MIAO Weifang; WANG Kai yang; JWEI Wenduo; WANG Longbao (Institute of Metal Research; Academia Sinica; Shenyang). PREPARATION OF Sm-Fe ALLOY USING MECHANICAL ALLOYING AND ITS CRYSTALLIZATION AND NITROGINATION. Acta Metall Sin, 1992, 28(10): 53-59.

Abstract References Related Articles Recommended Metrics Download:  PDF(614KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The crystallization and nitrogination of a mechanically alloyed Sm-Fe alloy have been investigated. The results show that the alloy consists of amorphous Sm-Fe phase and crystalline α-Fe. The composition of the alloy is inhomogeneous, the surface of the as-milled powder is relatively poor in Fe. The crystallization process involves the long-range diffusion of iron atoms and solid state reaction. After proper crystallization, the as-milled powder transforms into a Sm_2Fe_(17) phase completely. A metastable phase, which may be a Sm_2Fe_(17) phase with the structure of hexagonal Th_2Ni_(17) type, appears during the crystallization process. Nitrogination of Sm_2Fe_(17) consists of the following processes: incubation period, coexistence of Sm_2Fe_(17) and its nitride, and transformation of residual Sm_2Fe_(17) into nitride phase. During nitrogination small amount of very fine α-Fe segregates. Key words:  Sm_2Fe_(17)      crystallization      nitrogination      Received:  18 October 1992      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1992/V28/I10/53 1 Coey J M D, Sun Hong, Otain Y. J Magn Magn Mater, 1990; 69: 1 2 Schnitzke K, Schultz L, Wecker J, Katter M. Appl Phys Lett, 1990; 57: 2853 3 Katter M, Wecker J, Schultz L, Groessinger R. J Magn Magn Mater, 1990; 92: L14 4 Coene W, Hakkens F, Jacobs T H, De Mooji D S, Buschow K H J. J Less-Common Met, 1990; 157:255 5 Coey J M D, Lawler J F, Sun Hong, Allan J E M. J Appl Phy, 1991; 69: 3007 6 Sun Hong, Hu Boping, Li Hongshuo, Coey J M D. Solid State Commun, 1990; 74: 727 7 Schlabach L, Seiler A, Stucki F, Zuercher P, Fischer P, Schefer J. Z Phys Chem, Neue Folge, 1979; 117: 205 [1] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. 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