FeCuNbBSi等多种Fe基非晶态合金激波晶化的DSC研究

 应用升温、等温和重复加热的DSC技术，对几种非晶合金的激波晶化和退火晶化作了对比研究。结果表明，尽管激波晶化时间极短，仅为退火晶化时间的10^-6～10^-8，但晶化度却极高，接近100%。激波晶化形成多种成分和结构的结晶相，形式上很像扩散性相变，然而其相变速率却是退火转变的千万倍，而且生成相十分稳定，这一现象用传统的固态扩散相变理论很难解释。激波晶化是一种新的晶化形式，是一种新的纳米合成技术。

SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOYS FeSiB,FeMoSiB AND FeCuNbSiB

Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB and FeCuNbSiB were investigated by isothermal and non-isothermal DSC technique. It is found that shock wave crystallization is very perfect (fraction crystallized is very close to 100%) though the period of crystallization is very short, only about 10^-6～10^-8 of annealing's. Produced phases are different from the parent phase in structure and composition, shock wave crystallization is similar to the diffusion solid state phase transition in form, however, it is very difficult to explain the high velocity of transformation by the diffusion theory of solid state phase transition. Shock wave crystallization of amorphous alloy is a new method.