制备气氛的氧含量对Fe40Ni40P14B6块体非晶态合金性能的影响

为探究制备气氛中的氧对Fe基非晶态合金性能的影响,采用Fluxing提纯技术和J-quenching快速凝固技术分别在氩气、空气和氧气气氛下制备了Fe40Ni40P14B6块体非晶态合金,对不同气氛下制备样品的玻璃化形成能力、热稳定性、磁性能和力学性能进行了对比研究。结果表明,在氩气、空气和氧气气氛下制备的Fe40Ni40P14B6非晶态合金棒的最大直径分别为2.0、1.5和1.0 mm。随着制备气氛中氧含量的增加,Fe40Ni40P14B6合金的玻璃化形成能力逐渐下降;玻璃转变温度(Tg)和起始晶化温度(Tx)逐渐下降,热稳定性降低;饱和磁化强度逐渐增加,从氩气下的0.74 T增加到氧气下的0.80 T;压缩强度略有下降,但塑性应变略有增加。

Effects of Oxygen Content in Preparation Atmosphere on the Properties of Fe40Ni40P14B6 Bulk Metallic Glasses

To explore the preparation of oxygen in the atmosphere affect the performance of Fe-based amorphous alloy,the Fe40Ni40P14B6 bulk amorphous alloy was prepared by Fluxing purification and J-quenching rapid solidification in argon,air and oxygen respectively.The vitrification forming ability,thermal stability,magnetic properties and mechanical properties of the samples prepared under different atmospheres were compared.The results show that the maximum diameters of Fe40Ni40P14B6 bulk amorphous alloy rods prepared in argon,air and oxygen atmospheres are 2.0,1.5 and 1.0 mm,respectively.With the increase of oxygen content in the preparation atmosphere,the vitrification forming ability of Fe40Ni40P14B6 alloy decreased gradually.The transition temperature(Tg)and initial crystallization temperature(Tx)of the glass gradually decrease,and the thermal stability decrease.The saturation magnetization gradually increased from 0.74 T in argon to 0.80 T in oxygen.The compressive strength decrease slightly,but the plastic strain increase slightly.