低硼高韧性铁基非晶薄带的制备及其软磁特性  

Preparation and Soft Magnetic Properties of High-toughness/Low-boron Iron-based Amorphous Ribbon

作　　者：甘章华[1] 周欢华[1] 戴义[1] 刘静[1] 

机构地区：[1]武汉科技大学材料与冶金学院,钢铁冶金及资源利用教育部重点实验室,湖北武汉430081

出　　处：《材料科学与工程学报》2013年第6期819-822,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学青年基金资助项目(51001083)

摘　　要：采用单辊甩带机在大气环境下制备了一种低硼含量的Fe75.5Si13.5B7Cu1Nb1.5V1.5合金薄带。该合金薄带的XRD图谱呈现一个宽峰,表明薄带具有非晶态结构。与Fe73.5Si13.5B9Cu1Nb3非晶合金原带相比,Fe75.5Si13.5B7Cu1Nb1.5V1.5非晶合金原带的韧性大幅提高,可对折一次不断。经过优化530℃×60min晶化退火后,发现随频率增高,该合金的相对磁导率下降趋势缓慢,高频下的相对磁导率优于Fe73.5Si13.5B9Cu1Nb3纳米晶合金。Fe75.5Si13.5B7Cu1Nb1.5V1.5 alloy ribbons with a low boron content were prepared by a single- roller melt spinner in environmental atmosphere. The XRD pattern of the alloy ribbon shows a broad peak, suggesting that the ribbon should have an amorphous structure. The toughness of as-prepared amorphous Fe75.5Si13.5B7Cu1Nb1.5V1.5 alloy ribbon is better than that of the conventional Fe75.5Si13.5B7Cu1Nb3 alloy ribbon. The amorphous Fe75.5Si13.5B7Cu1Nb1.5V1.5 alloy ribbon is not broken after being folded. It is found that the relative magnetic permeability of the Fe75.5Si13.5B7Cu1Nb1.5V1.5 alloy decreases slowly with frequency after being optimally annealed at 530℃ for 60 min. Under high frequency the relative permeability of nanocrystalline Fe75.5Si13.5B7Cu1Nb1.5V1.5 alloy is higher than that of nanocrystalline Fe75.5Si13.5B7Cu1Nb3 alloy.

关 键 词：纳米晶合金 高韧性 相对磁导率 高频 

分 类 号：TM271.2[一般工业技术—材料科学与工程]