Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9纳米晶合金在NaCl溶液中耐腐蚀性能研究  

Study on the corrosion resistance of Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 nanocrystalline alloys in NaCl solution

作　　者：胡琴[1] 朱正吼[1] 尹镭[1] 

机构地区：[1]南昌大学材料科学与工程学院,江西南昌330031

出　　处：《功能材料》2012年第21期2942-2945,共4页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)前期预研资助项目(2010CB635112);国家自然科学基金资助项目(60961001);NSFC联合基金资助项目(11076016)

摘　　要：研究了Fe73.5Cu1Nb3Si13.5B9纳米晶合金在0.1mol/L的NaCl溶液中的耐腐蚀性能,及对其软磁性能的影响。实验结果表明,Fe73.5Cu1Nb3Si13.5B9纳米晶合金经0.1mol/L的NaCl溶液腐蚀后溶液中有橙色沉淀物产生,XRD测试表明铁基纳米晶合金腐蚀后仍保留非晶纳米晶双相结构;铁基纳米晶合金有效磁导率μe随腐蚀时间的增加而降低,腐蚀30d后在频率为50Hz、1、100kHz时其有效磁导率μe较腐蚀前分别下降35.9%、35.3%、27.6%,矫顽力Hc由腐蚀前的0.7097A/m增加到1.117A/m,增加了57.4%,磁滞损耗Pu由腐蚀前的1.819J/m3增加到2.994J/m3,增加了64.6%,腐蚀后铁基纳米晶合金软磁性能有所下降。The corrosion resistance of Fe73. sCu1Nb3Si13.5B9 nanocrystalline alloys in 0. 1mol/L NaCl solution and its influence to soft magnetic properties were studied. The results show that an orange precipitate was produced in the NaCl solution after corrosion, X-ray diffraction show that Fe-based nanocrystalline alloys retain amorphous-nanocrystalline duplex structure after corrosion; the effective permeability of Fe-based nanocrystalline alloys reduce with increasing of corrosion time, after corrosion for 30d, the effective permeability decreased by 35.9%, 35. 3% and 27. 6% at 50Hz, 1 and 100kHz, respectively, coercive force increase from 0. 7097 to 1.117A/m, increased by 57.4%, hysteresis loss increase from 1. 819 to 2. 994J/m^3 , increased by 64.6%, the soft magnetic properties of Fe-based nanocrystalline alloys are decreased after corrosion.

关 键 词：铁基纳米晶 腐蚀 软磁性能 

分 类 号：TG139.8[一般工业技术—材料科学与工程]