摘要
阐述了Ｏｚａｗａ图法和Ｋｉｓｓｉｎｇｅｒ图法在测定铁基非晶态合金晶化过程激活能方面的应用．在满足不同加热速率下的晶化温度所对应的晶化程度相同的前提下，用Ｏｚａｗａ图法和Ｋｉｓｓｉｎｇｅｒ图法测出的非晶态Ｆｅ７９，Ｂ１６。Ｓｉ５合金预晶化相ａ－Ｆｅ析出阶段的激活能分别为３８２～４０７ｋＪ／ｍｏｌ（Ｏｚａｗａ国法）和３７４～３９９ｋＪ／ｍｏｌ（Ｋｉｓｓｉｎｇｅｒ图法），测定结果十分接近，说明上述２种方法测定铁基非晶合金晶化过程激活能方面结果是一致的．在利用Ｏｚａｗａ图法和Ｋｉｓｓｉｎｇｅｒ图法测定铁基非晶合金的晶化激活能时，不同加热速率下的晶化温度的测定，应以Ｘ射线衍射谱最强峰强度相等作为标准．
The adaptability of the ozawa Plot method and the Kissinger Plot method to determine the activation energies for crystallization process of Fe-based amorphous alloys has been described. The activation energies for crystallization process of Fe79 B16 Si6 alloy, determined by the Ozawa Plot method and the Kissinger Plot method are 382￣407 kJ/mol and 374￣399 kJ/mol, respectively. It indicates the accordance of these two methods for determining the activation energies for the crystallization process of Fe-based amorphous alloys.When using Ozawa Plot method and the Kissinger Plot method, the crystalline temperaturescorresponding to different heating rates should be determined under the condition of the equivelence of the highiest peaks in X-ray diffraction patterns.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第2期98-103,共6页
Journal of Shanghai Jiaotong University
关键词
非晶态合金
晶化
激活能
铁基
s: amorphous alloy
crystallization
activation energy
