FINEMET合金Fe_(73.5)Si_(13.5)B_9Cu_1Nb_3不同状态微观结构研究进展  

Development of Investigations on Microstructure of FINEMET Alloy Fe_(73.5)Si_(13.5)B_9Cu_1Nb_3 in Different States

作　　者：李成栋[1] 田学雷[1] 陈熙琛[1] Iljinsky A G 

机构地区：[1]山东大学材料液态结构及其遗传性国家教育部重点实验室,山东济南250061 [2]G.V.Kurdyumov Institute for Metal Physics

出　　处：《稀有金属》2003年第3期371-375,共5页Chinese Journal of Rare Metals

基　　金：山东省自然科学基金资助项目 (Q99F16)

摘　　要：综述了FINEMET合金在液态、淬火非晶态和不同晶化状态时的微观结构研究现状。研究表明 ,该合金液态结构由多种原子团簇组成 ,符合微观不均匀模型 ;合金淬火态非晶组织含有尺寸约为 2nm的微观不均匀区域 ;在低温 (<45 0℃ )退火处理时从淬火非晶态到纳米晶态的转变已经发生。基于Cu和Nb两种元素的作用 ,总结了该合金的晶化机制 :合金液态。Investigation on the microstructure of FINEMET in liquid, amorphous and different crystalline states was reviewed. It is suggested that the liquid consisting of several different atomic clusters can be described with the mircroheterogeneous model. There are heterogeneities with the size about 2 nm in the as quenched amorphous state. And the transformation from amorphous to nanocrystalline state occurs already at a low temperature(<450 ℃) during the annealing process. Based on the analyses of effect of copper and niobium, the crystallization mechanism is summarized that there are microstructure correlations among liquid, amorphous and nanocrystalline states.

关 键 词：非晶 晶化 纳米晶 相关性 

分 类 号：O482.54[一般工业技术—材料科学与工程] TG113.12[理学—固体物理]