点击次数：

论文类型：期刊论文

发表时间：2009-11-01

发表刊物：MATERIALS TRANSACTIONS

收录刊物：SCIE、EI、Scopus

卷号：50

期号：11

页面范围：2515-2520

ISSN号：1345-9678

关键字：iron-based amorphous alloys; activation energy; avrami exponent; nanocrystalline alloy

摘要：The effect of simultaneously adding P and Cu on the crystallization behavior of hetero-amorphous FeSiB alloy was investigated. Thermal properties and microstructure evolution were Studied by means of X-ray diffraction, transmission electron microscopy, differential scanning, and isothermal calorimetric methods. It is found that the addition of P and Cu to the FeSiB alloy changes its crystallization temperature as well as the apparent activation energy for crystallization. The crystallization process is mainly dominated by three-dimensional growth with various nucleation rates for the selected FeSiB(PCu) alloys. The phases formed during crystallization for the different alloys of Fe84Si4B12, Fe83.3Si4B12Cu0.7, and Fe83.3Si4B8P4Cu0.7 are similar. The refinement effect of adding P and Cu to the FeSiB alloys is observed. The mean size of alpha-Fe phases decreases from 200 nm to about 20 run. [doi: 10.2320/matertrans.M2009206]