Sn对多元Fe基非晶合金的玻璃形成能力及磁性能的影响  

Effects of Sn on Glass Forming Ability(GFA) and Magnetic Performance of Multi-component Fe-based Amorphous Alloys

作　　者：赵江[1] 傅明喜[1] 王芳芳[1] 周宏军[1] 卢永慧[1] 

机构地区：[1]江苏大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2007年第11期885-887,共3页Special Casting & Nonferrous Alloys

基　　金：江苏省教育厅高校科学研究资助项目(03KJD430067)

摘　　要：研究分析了Sn元素对Fe-Ni-Al-Ga-P-B-Si-C系非晶合金玻璃形成能力及磁性能的影响。XRD分析表明,合金Fe68-xNi1Al5Ga2P9.65B4.6Si3C6.75Snx(x=0,0.5,1.5,2.5)在铸态下皆为非晶态,并且合金的脆性随着Sn含量的增加急剧增大;DSC分析表明,随着Sn含量的增加,合金的玻璃转变温度Tg逐渐下降,同时过冷液相区ΔTx逐渐变宽,而且增加幅度越来越大。Sn含量为0.5%和1.5%时,第一晶化放热峰Tp1已变得不明显,说明合金由二次晶化向一次晶化转变。当Sn含量为2.5%时,合金具有较好的软磁性能。Effects of Sn on GFA and magnetic performance of Fe-Ni-Al-Ga-P-B-C-Si series amorphous alloy have been examined by XRD(X-ray diffraction).The results show that as-cast Fe68-xNi1Al5Ga2P9.65B4.6Si3Snx(x=0,0.5,1.5,2.5) alloy is amorphous alloy,and the brittleness of the alloy is sharply deteriorated with the increase of Sn content.DSC analysis reveals that with increasing Sn content,the glass transition temperature of alloy Tg is gradually declined and under-cooling liquid zone is gradually widened with more and more amplitude increase.First crystallized exothermal peak Tp1 is blurred with 0.5% and 1.5% Sn content,which shows that the alloy is changed from secondary crystallization to primary crystallization.The alloy containing 2.5% Sn has better soft magnetic property.

关 键 词：FE基非晶合金 合金元素 玻璃形成能力 热稳定性 磁性能 

分 类 号：TG139.8[一般工业技术—材料科学与工程]