%0 Journal Article
%T THREE NEW Fe-BASED MICROCRYSTALLINE ALLOYS WITH SUPERIOR MAGNETIC PROPERTIES<br>具有优良磁性能的新型铁基微晶合金的研究
%A ZHANG Yanzhong
%A NIAN Suzhen Shanghai Iron
%A Steel Research Institure Correspondent
%A senior
%A engineer
%A Shanghai Iron
%A Steel research Institute
%A Shanghai
%A <br>张延忠
%A 年素珍
%J 金属学报
%D 1992
%I 
%X 本文报道三种新型铁基微晶合金Fe_(73)Cu_(1.2)Nb_(3.2)Si_(12.5)B_(10)(合金1),Fe_(73.1)Cu_1Nb_(1.5)Si_(1.25)B_(10)(合金2)及Fe_(73)Cu_1Zr_3C_(0.5)Si_(12.5)B_(10)(合金3),它们具有μ'_i≥5×10~4的高相对起始磁导率、Hc≤1.0A/m的低矫顽力、在相当宽频率范围内的高有效磁导率、低铁芯损耗和窄脉冲条件下的高脉冲磁导率。在f=1kHz和H_m=0.4A/m条件下,相对有效磁导率μ’_5的最佳值为16×10~4,超过了Yoshizawa报道的μ’_5=10×10~4。最佳铁损值为P_(5/50k)=57.9W/kg、P_(2/100k)=30.2W/kg和P_(3/100k)=68W/kg,也超过了Yoshizawa报道的P_(2/100k)=38.9W/kg。这些合金都具有优良的磁性稳定性;在130℃下保温216h后起始磁导率不变,合金的主晶相是Fe_(75+y)Si_(25-y)型有序固溶体,晶粒的平均直径为10～20nm。
%K microcrystalline alloy
%K relative initial permeability
%K effective permeability
%K coercivity
%K core lose
%K ultrafine particle<br>微晶合金
%K 磁导率
%K 矫顽力
%K 铁芯损耗
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=500CBB1C2D87B1FBF48351F4DDDC1331&yid=F53A2717BDB04D52&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=228A710F49B6CE58&eid=656F8C8401D91023&journal_id=0412-1961&journal_name=金属学报&referenced_num=6&reference_num=4