采用单辊法制备宽为20 mm、厚为25μm的Fe78Si9B13合金带材，用XRD和DSC分析其非晶形成能力、晶化行为和热稳定性，并研究退火温度对其软磁性能的影响。结果表明：淬火态Fe78Si9B13合金带材为非晶态，一级起始晶化温度Tx1为517℃；二级起始晶化温度Tx2为530℃；当退火温度升高到450℃，开始部分晶化，微量析出bcc结构的α-Fe（Si）晶化相，磁化曲线呈一定的线性关系，即合金呈恒导磁特性。随着退火温度的升高，Fe78Si9B13合金带材的初始磁导率μi、饱和磁感应强度Bs和矫顽力Hc，呈先增大后减小的趋势。测试频率为50 Hz，随着退火温度的升高，磁导率μa呈先增大后减小的趋势，磁损耗Ps呈先减小后增大的趋势。
Fe78Si9B13 alloys strips with 20 mm width and 25μm thickness were manufactured by single?roller method. The glass forming ability,crystallization behavior and thermal stability of the sample were analyzed by XRD and DSC,respectively. The effect of annealing temperature on soft magnetic properties was studied. The results show that as?quenched Fe78Si9B13 strips are amorphous,and its first and second crystallization onset temperature(Tx1 and Tx2)are 517℃and 530℃,respectively. When the annealing temperature is increased to 450 ℃,the sample begins to appear part of crystallization,and separates out a small number ofα?Fe(Si)crystallization phases with bcc structure,and magnetizing curve shows a linear relationship,namely alloy presents constant permeability characteristics. With increasing annealing temperature,the initial permeability μi,saturation magnetic induction Bs and coercivity Hc of the sample increase first and then decrease. When test frequency is 50 Hz, permeabilityμa shows a trend of increasing first and then decreasing,however magnetic loss Ps presents a trend of decreasing first and then increasing with the increase of annealing temperature.
参考文献
| [1] | Hasegawa R. .Applications of amorphous magnetic alloys in electronic devices[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2001(1/3):405-412. |
| [2] | Malkinski LM. .THE ROLE OF RESIDUAL STRESSES IN MAGNETOSTRICTIVE METALLIC GLASSES[J].Journal of Magnetism and Magnetic Materials,1995(1):267-268. |
| [3] | Fang SS.;Xiao X.;Lei X.;Li WH.;Dong YD. .Relationship between the widths of supercooled liquid regions and bond parameters of Mg-based bulk metallic glasses[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2003(1/2):120-125. |
| [4] | 彭浩,李双寿,黄天佑.以原子半径和电负性表征镁基非晶形成能力[J].清华大学学报（自然科学版）,2010(08):1188-1192. |
| [5] | 宁向梅,黄金亮,贾淑果,殷镖,张兴渊.Al对Mg-Cu-Y合金非晶形成能力及热稳定性的影响[J].中国有色金属学报,2013(07):1805-1811. |
| [6] | 姜敏凤,陈文智.退火态Fe-Si-B非晶合金恒导磁性能研究[J].金属热处理,2010(12):116-119. |
| [7] | 尹镭,朱正吼,郑海娟,徐雪娇,刘吉磊.Fe78Si9B13非晶合金磁芯封装及其软磁性能[J].功能材料,2012(06):722-724. |
| [8] | 蒋达国,余晓光,朱正吼.退火工艺对FeSiB非晶薄带压应力阻抗效应的影响[J].稀有金属材料与工程,2008(03):440-443. |
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