Crystallization behavior of melt-spun Nd/sub x/Fe/sub 93-x/Nb/sub 1/B/sub 6/ alloys
Crystallization behavior of melt-spun Nd/sub x/Fe/sub 93-x/Nb/sub 1/B/sub 6/ alloys
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熔纺Nd/sub x/Fe/sub 93-x/Nb/sub 1/B/sub 6/合金的结晶行为
DOI：
10.1109/20.538888
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
G. Hadjipanayis
中科院分区：
文献类型：
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作者：
L. Withanawasam;I. Panagiotopoulos;G. Hadjipanayis
用量热法研究了Nd/sub x/Fe/sub 93-x/Nb/sub 1/B/sub 6/熔融纺带的结晶行为。结晶产物通过x射线衍射和热磁测量进行了鉴定。带有x/spl ges/10的样品直接从无定形结晶为Nd/sub 2/Fe/sub 14/B和/spl α /-Fe相的混合物。对于10<x<7，通过两阶段结晶得到最终的2:14:1和/spl α /-Fe相混合物，其中在初始结晶时产生中间亚稳相Nd/sub 2/Fe/sub 23/B/sub 3/和Nd/sub 3/Fe/sub 62/B/sub 14/。在7<x<4的样品中，中间相为Nd/sub 3/Fe/sub 62/B/sub 14/。在Nd含量低于3%的样品中没有观察到亚稳相，尽管量热测量表明是两步结晶过程。
The crystallization behavior of Nd/sub x/Fe/sub 93-x/Nb/sub 1/B/sub 6/ melt-spun ribbons was investigated using calorimetric techniques. The crystallization products were identified by X-ray diffraction and thermomagnetic measurements. Samples with x/spl ges/10 crystallize directly from amorphous to a mixture of Nd/sub 2/Fe/sub 14/B and /spl alpha/-Fe phases. For 10<x<7, the final mixture of 2:14:1 and /spl alpha/-Fe phases is obtained through a two stage crystallization where the intermediate metastable Nd/sub 2/Fe/sub 23/B/sub 3/ and Nd/sub 3/Fe/sub 62/B/sub 14/ phases are produced at the initial crystallization. In samples with 7<x<4 the intermediate phase Is Nd/sub 3/Fe/sub 62/B/sub 14/. No metastable phases were observed in samples containing less than 3 at% Nd although the calorimetric measurements indicated a two-step crystallization process.