Nb对Fe-Si-B-P-Cu非晶/纳米软磁合金的非晶形成能力及磁性能的影响  

Effect of Nb on Glass Forming Ability and Magnetic Properties of Fe-Si-B-P-Cu Amorphous/Nano-softness Magnetic Alloy

作　　者：周林[1] 杨元政[1] 陶平均[1] 王粤[1] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《热加工工艺》2012年第18期24-27,30,共5页Hot Working Technology

基　　金：国家自然科学基金资助项目(50971046);广东省教育部产学研结合项目(2011B090400485)

摘　　要：研究了添加Nb元素对Fe-Si-B-P-Cu非晶/纳米软磁合金非晶形成能力、热稳定性及磁性能的影响,同时也研究了热处理前后Bs值的变化。研究表明:Nb元素的添加提高了非晶态组织的热稳定性,扩大了混合相分离温度(Tp1)与非晶态组织晶化温度(Tp2)间的温度区间(ΔT),改变了制备带材(As Q)的Bs值,热处理后的Ms值先增加后降低,再增加而后趋于平缓,同时获得了Bs高于2.0 T的非晶/纳米晶软磁材料。The effects of Nb content on the glass forming ability,thermo-stability and magnetic property were studied.The changes of Bs after heat treatment were also studied.The results show that that Nb＇s addition can improve the amorphous thermo-stability,enlarge the interval（ΔT） of matrix phases＇ separation temperature（Tp1） and amorphous＇ crystalization temperature（Tp2）,and change the initial samples＇（As Q） Bs.After heat treatment,Ms value first increases,then decreases,and later improved to a stable value,which can get an excellent Bs higher than 2.0 T.

关 键 词：非晶/纳米晶 非晶形成能力 饱和磁感应强度 晶化温度 

分 类 号：TB34[一般工业技术—材料科学与工程]