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研究了预退火对Sm5Fe74.3 Nb1.5Si11.7B4.5C2 .5Cu0 .5非晶合金晶化动力学的影响。结果表明 ,预退火处理使非晶合金晶化相α Fe和Sm2 Fe17Cx 的晶化温度 (Tp)和晶化表观激活能(Ec)值降低 ,且改变晶化相α Fe在晶化过程中晶化激活能的变化趋势 ,有助于该合金在晶化退火中形成晶粒尺寸较小的α Fe相。
The effect of pre-annealing on the crystallization kinetics of Sm5Fe74.3Nb1.5Si11.7B4.5C2.5Cu0.5 amorphous alloy was studied. The results showed that the pre-annealing treatment decreased the crystallization temperature (Tp) and the apparent activation energy (Ec) of α Fe and Sm2 Fe17Cx amorphous phases, and changed the crystallization temperature α Fe during the crystallization The trend of crystallization activation energy helps the alloy to form α Fe phase with smaller grain size in the crystallization annealing.