Glass forming ability and magnetic properties of (Fe68B15Nd7)96Nb4 bulk metallic glass
Flakes with a size of 20×4× 0.8mm3 and rods of (Fe68B25Nd7)96Nb4 bulk metallic glass (BMG) with a diameter of 1.5 and 3mm were cast. Rods a diameter of 1.5 mm were proven to be XRD amorphous. High vacuum environment during the fabrication will benefit the formation of fully amorphous BMG. The super-cooled liquid regions of (Fe68B25Nd7) 96Nb4 is 59℃ and the reduced glass transition temperature is 0.624 indicating good glass-forming ability. The critical cooling rate for glass formation for (Fe68B25Nd7)96Nb4 melt is about 294℃/s by computer simulation (Fe68B25Nd7)96Nb4 BMG shows soft magnetic property while partially crystallized sample shows hard magnetic property.
bulk metallic glass glass forming ability magnetic property
Y.Cao G.Chen Y.Li
Engineering Research Center of Materials Behavior and Design,Ministry of Education,Nanjing Universit Department of Materials Science and Engineering,Faculty of Engineering,National University of Singap
国际会议
常州
英文
629-632
2009-11-19(万方平台首次上网日期,不代表论文的发表时间)