CAJ | 학술논문

采用单辊急冷法制备了一系列不同 Cr/Mo比的 FeCoMoCrZr 非晶薄带,并对该系非晶合金进行等温热处理.用 XRD和 VSM研究 Cr/Mo 比的变化对(Fe0．58 Co0．42)73 Mo17－x Crx Zr10系非晶合金晶化过程和磁性能的影响.结果表明,x 在9~17之间变化时,所制备的合金薄带为非晶结构；(Fe0．58 Co0．42)73 Mo5 Cr12 Zr10非晶合金的晶化过程为：Am →α-Fe(Co)＋CrFe4＋Fe23 Zr6＋Cr2 Mo,(Fe0．58 Co0．42)73 Cr17 Zr10非晶合金的晶化过程为：Am →α-Fe(Co)＋ Am′→α-Fe(Co)＋ CrFe4＋Fe3 Ni2＋未知相；Cr/Mo 比例的增加降低了合金的热稳定性,促进了退火后α-Fe(Co)相的析出.两种合金的饱和磁化强度Ms随退火温度的变化趋势相同但幅度不同,在低于晶化峰值温度Tp退火,(Fe0．58 Co0．42)73 Mo5 Cr12 Zr10合金的Ms随退火温度的升高缓慢上升；而(Fe0．58 Co0．42)73 Cr17 Zr10合金的Ms随退火温度的升高快速大幅上升.
채용단곤급랭법제비료일계렬불동 Cr/Mo비적 FeCoMoCrZr 비정박대,병대해계비정합금진행등온열처리.용 XRD화 VSM연구 Cr/Mo 비적변화대(Fe0．58 Co0．42)73 Mo17－x Crx Zr10계비정합금정화과정화자성능적영향.결과표명,x 재9~17지간변화시,소제비적합금박대위비정결구；(Fe0．58 Co0．42)73 Mo5 Cr12 Zr10비정합금적정화과정위：Am →α-Fe(Co)＋CrFe4＋Fe23 Zr6＋Cr2 Mo,(Fe0．58 Co0．42)73 Cr17 Zr10비정합금적정화과정위：Am →α-Fe(Co)＋ Am′→α-Fe(Co)＋ CrFe4＋Fe3 Ni2＋미지상；Cr/Mo 비례적증가강저료합금적열은정성,촉진료퇴화후α-Fe(Co)상적석출.량충합금적포화자화강도Ms수퇴화온도적변화추세상동단폭도불동,재저우정화봉치온도Tp퇴화,(Fe0．58 Co0．42)73 Mo5 Cr12 Zr10합금적Ms수퇴화온도적승고완만상승；이(Fe0．58 Co0．42)73 Cr17 Zr10합금적Ms수퇴화온도적승고쾌속대폭상승.
Amorphous ribbons of the FeCoMoCrZr alloy with different Cr/Mo ratios were prepared by melt-spun method and annealed at different temperatures.X-ray diffraction and vibrating sample magnetometer were adopted to study the effect of Cr/Mo ratios on the crystallization processes and magnetic properties of (Fe0.5 8 Co0.42)73Mo17-xCrxZr10 amorphous ribbons.The results show that when x ranges from 9 to 17,the ribbons are in an amorphous state.The crystallization process of (Fe0.58 Co0.42 )73 Mo5 Cr12 Zr10 is Am →α-Fe(Co)+ CrFe4+Fe23 Zr6+Cr2 Mo,but the crystallization process of (Fe0.58 Co0.42 )73 Cr17 Zr10 is Am →α-Fe(Co)+ Am′→α-Fe (Co)+ CrFe4+ Fe3 Ni2+ unidentified phase;Increasing Cr/Mo ratios decrease the thermal stability of the al-loys and increase the precipitation ofα-Fe(Co)after annealing.The changing of magnetic properties of the two alloys are different with increasing annealing temperature.Annealed below Tp ,the value of saturation magneti-zation Ms of (Fe0.58 Co0.42 )73 Mo5 Cr12 Zr10 alloy increases slowly with increasing the annealing temperature,but the Ms of (Fe0.58 Co0.42 )73 Cr17 Zr10 alloy increases quickly with increasing the annealing temperature.