Grain growth processes in a nanocrystalline Fe74.5Si13.5B9Nb3 alloy

被引：0
|
作者：
Zhou, F. [1 ]
Sui, M.-L. [1 ]
He, K.-Y. [1 ]
Cheng, L.-Z. [1 ]
Lai, Z.-H. [1 ]
Li, S.-L. [1 ]
机构：
[1] Northeastern Univ, Shenyang, China
来源：
Nanostructured Materials | 1994年 / 4卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Addition reactions - Calorimetry - Crystal growth - Crystalline materials - Grain growth - Heating - Niobium - X ray analysis;
D O I：
10.1016/0965-9773(94)90093-0
中图分类号：
学科分类号：
摘要：
Grain growth processes in a nanocrystalline Fe74.5Si13.5B9Nb3 alloy, which was formed from its amorphous alloy precursor by crystallization, were investigated by differential scanning calorimetry (DSC) and X-ray diffraction (XRD) techniques. Upon heating the alloy at constant heating rates, two exothermal peaks are observed, the first of which mainly originates from the grain growth of Fe3Si and Fe3B crystallites and the second mainly from Fe23B6 and FeNbB grain growth. The activation energy for grain growth of Fe3Si and Fe3B phase is calculated by means of grain growth temperature and heating rate using the Kissinger equation. The DSC and XRD measurement results indicate that the nanophases in the alloy are relatively stable, presumably due to the addition of Nb element, which suppresses the crystalline growth.
引用
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页码：877 / 882
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