A set of stacked ribbons with the composition of Fe77Ga23 were prepared with different wheel velocities of 7 m/s, 12.5 m/s and 25 m/s (named as S-7, S-12.5 and S-25, respectively). High resolution X-ray diffraction patterns of these ribbons show that all the ribbons present the disordered A(2) structure, whereas an additional modified-DO3 phase is detected in S-12.5 and S-25. S-25 has stronger (100) texture than other two samples. Ga K-edge extended X-ray absorption fine structure results indicate that both bond distance and the number of Ga atoms in the second neighbor shell around Ga decrease with increasing wheel velocity. No Ga cluster is detected in the studied ribbons. A short-range ordering Ga-rich phase and large local strain have no obvious influence on magnetostriction of S-7. It is believed that both the (100) texture and the additional modified-DO3 phase play a positive role in magnetostrictive properties of Fe77Ga23 ribbons.
Liu, H,Wang, HO,Cao, MX,et al. Magnetostriction and microstructure of melt-spun Fe77Ga23 ribbons prepared with different wheel velocities[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2015,25(1):122-128.
Liu, H.,Wang, HO.,Cao, MX.,Tan, WS.,Shi, YG.,...&贾全杰.(2015).Magnetostriction and microstructure of melt-spun Fe77Ga23 ribbons prepared with different wheel velocities.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,25(1),122-128.
Liu, H,et al."Magnetostriction and microstructure of melt-spun Fe77Ga23 ribbons prepared with different wheel velocities".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 25.1(2015):122-128.