Effects of Zr on crystallization kinetics of Pr-Fe-B amorphous alloys

被引：0
|
作者：
Liu, JH [1 ]
Li, W [1 ]
Chen, Y [1 ]
Guan, Y [1 ]
机构：
[1] Yanshan Univ, Coll Mat & Chem Engn, Qinhuangdao 066004, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2002年 / 12卷 / 03期
关键词：
Pr-Fe-B amorphous alloys; Zr; crystallization kinetics; activation energy;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effects of Zr on crystallization kinetics of Pr-Fe-B amorphous alloys have been investigated by DTA and XRD methods. It was found that for Pr8Fe86-xZrxB6(x =0, 1, 2) amorphous alloys, the final crystallized mixture is alpha-Fe and Pr2Fe14B, and the metastable Pr2Fe23B3 Phase occurs during crystallization of Pr8Fe86B6 amorphous alloy, not during crystallization of Pr8Fe86-xZrxB6(x = 1, 2) amorphous alloys. By analyzing the activation energy of crystallization, the formation of an alpha-Fe/Pr2Fe14B composite microstructure with a coarse grain size in annealed Pr8Fe86B6 alloy, is attributed to a difficult nucleation and an easy growth for both the alpha-Fe and Pr2Fe14B in the alloy. The addition of Zr can be used to change the crystallization behavior of the alpha-Fe phase in Pr-Fe-B amorphous alloy, which is helpful to reduce the grain size for the alpha-Fe phase.
引用
收藏
页码：466 / 469
页数：4
相关论文
共 50 条
  • [41] HOT DEFORMATION OF CAST Pr-Fe-B MAGNETS
    CHEN Zhongmin SHI Zhengxing WANG Leyi FU Hengzhi Northwestern Polytechnical University
    Acta Metallurgica Sinica(English Edition), 1992, (11) : 357 - 363
  • [42] Hot processing of Pr-Fe-B permanent magnets
    Mendoza, G
    Davies, HA
    Leonowicz, M
    RARE-EARTH MAGNETS AND THEIR APPLICATIONS, VOLS 1 AND 2 - PROCEEDINGS OF THE 14TH INTERNATIONAL WORKSHOP, 1996, : A556 - A562
  • [43] Compositional dependence of crystallization behavior of mechanically alloyed amorphous Fe-Ni-Zr-B alloys
    Liu, YJ
    Chang, ITH
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 325 (1-2): : 25 - 30
  • [44] 高能积Pr-Fe-B铸造磁体
    T.Shimoda
    王标
    稀土, 1989, (02) : 61 - 63+40
  • [45] Study　of　the　Effect　of　Hot－pressing　Techniques　on　the　Magnetic　Properties　of　Pr－Fe－B　Alloys
    杨贤金
    姚家鑫
    赵乃勤
    李国俊
    Journal of Rare Earths, 1995, (03) : 230 - 233
  • [46] Pr-Fe-B三元系
    田静华
    黄毅英
    梁敬魁
    中国科学(A辑 数学 物理学 天文学 技术科学), 1987, (02) : 159 - 169
  • [47] Hydrogen permeability and crystallization kinetics in amorphous Ni-Nb-Zr alloys
    Kim, Sang-Mun
    Chandra, Dhanesh
    Pal, Narendra K.
    Dolan, Michael D.
    Chien, Wen-Ming
    Talekar, Anjali
    Lamb, Joshua
    Paglieri, Stephen N.
    Flanagan, Ted B.
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (04) : 3904 - 3913
  • [48] Investigation on Crystallization Kinetics of Zr-Al-Based Bulk Amorphous Alloys
    王国明
    李维火
    方守狮
    华勤
    肖学山
    Journal of Shanghai University, 2005, (01) : 78 - 81
  • [49] STUDY OF MAGNETIC-PROPERTIES AND MOSSBAUER-EFFECT OF PR-FE AND MELT-SPUN PR-FE-B ALLOYS
    ROTENBERG, LRK
    OLIVEIRA, RF
    RECHENBERG, HR
    MISSELL, FP
    JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) : 4127 - 4129
  • [50] Isochronal and isothermal crystallization kinetics of amorphous Fe-based alloys
    Zhang, J. T.
    Wang, W. M.
    Ma, H. J.
    Li, G. H.
    Li, R.
    Zhang, Z. H.
    THERMOCHIMICA ACTA, 2010, 505 (1-2) : 41 - 46
12345