论文部分内容阅读
采用M ssbauer效应和XRD分析方法研究了非晶合金Fe73.1Cu3.2Nb3.2Si12.5B10.0的晶化。实验表明,该非晶合金有两个晶化阶段。在第一阶段晶化后,样品主要由DO3型的a—FeSi合金的超细颗粒和作为晶界的非晶相两部分组成。随着退火温度的上升,晶化相的含量增加,非晶相含量减少、在第二阶段晶化后,残余的非晶相就晶化为Fe2B和Fe23B6化合物以及可能为Fe-Nb-B之类的顺磁相。
The crystallization of amorphous alloy Fe73.1Cu3.2Nb3.2Si12.5B10.0 was studied by M ssbauer effect and XRD analysis. Experiments show that the amorphous alloy has two crystallization stages. After the first stage of crystallization, the sample mainly consists of ultrafine particles of DO3-type a-FeSi alloy and amorphous phase as a grain boundary. As the annealing temperature increases, the content of the crystallized phase increases and the amorphous phase content decreases. After the second stage of crystallisation, the residual amorphous phase crystallizes into Fe2B and Fe23B6 compounds and possibly Fe-Nb-B Paramagnetic class.