Effect of electropulsing treatment on the crystallization kinetics of Zr55Ni5Al10Cu30 bulk metallic glass
作者： Haoyan Sun , Jingsong Wang , Lijun Cao , Qingguo Xue
DOI: 10.1016/J.TCA.2012.03.011
关键词: Crystallization 、 Materials science 、 Flux (metallurgy) 、 Metallurgy 、 Amorphous metal 、 Amorphous solid 、 Supercooling 、 Chemical engineering 、 Thermal analysis 、 Casting 、 Glass transition
摘要: Abstract Zr 55 Ni 5 Al 10 Cu 30 bulk metallic glass with a diameter of 3 mm was prepared by copper-mold suction casting combined covering flux technology under non-vacuum conditions. The non-isothermal crystallization kinetics and without electropulsing treatment on the molten alloy have been studied using modified JMA equation. Results show that, after treatment, transition temperature increases, while temperatures supercooled liquid range both decrease. activation energies become reduced Avrami exponents raised, indicating that are promoted treatment.
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