物理学报2012，Vol.61Issue(15)：454-459,6.
Y对Fe-Si-B合金非晶形成能力及软磁性能的影响
Influence of Y addition on the glass forming ability and soft magnetic properties of Fe-Si-B amorphous alloy
摘要
Abstract
Addition of rare earth elements can significantly improve the glass forming ability of Fe-based alloys.But the magnetic domain that most of the rare earths possess themselves always worsens soft magnetic properties of the alloys.By contrast,the rare earth element Y does not have this kind of magnetic domain itself,and is an ideal candidate to add to the Fe-based amorphous alloys as soft magnetic materials.In order to systematically study the effect of partial substitution of Fe in Fe78Si9B13 alloy with rare earth element Y on glass forming ability and soft magnetic properties,a series of wedge-shaped specimens and amorphous ribbons are prepared by copper mold suction casting and melt spinning respectively.It is found that the replacement of Fe by minor Y enhances the glass forming ability of the alloy.When 3 at.%Fe is replaced,the critical thickness and supercooled liquid region of the amorphous alloy reach their maximum values,313μm and 65 K,respectively.The amorphous alloys have excellent soft magnetic properties：coercive force（Hc） all bellow 200 A/m and saturation magnetic induction（Bs） all above 1.30 T.Specially,Bs reaches a maximal value,1.67 T,when 1 at.%Fe is substituted.关键词
铁基非晶/稀土元素/非晶形成能力/软磁性能Key words
Fe-based metallic glass/rare earth element/glass forming ability/soft magnetic property分类
矿业与冶金引用本文复制引用
张雅楠,王有骏,孔令体,李金富..Y对Fe-Si-B合金非晶形成能力及软磁性能的影响[J].物理学报,2012,61(15):454-459,6.基金项目
国家自然科学基金 （）
国家重点基础研究发展计划（批准号：2011CB610405）资助的课题 （）
