STUDY ON THE SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOYS BY DSC

• 作 者: H.Y.Zhao H.Wang Q.J.Liu J.D.Kan Z.Q.Liu
• 机 构: Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China
• 出 处: 金属学报(英文版)
• 发表日期: 2002年5期
• 关键词: amorphous alloy nano-crystallization shock wave crystallization

Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB andFeCuNbSiB were studied by isothermal and non-isothermal DSC technique. It wasfound that the shock wave crystallization is very perfect, the fraction crystallized isvery close to 100%, though the period of crystallization is very short, only about10-4-10-6 s. Their produced phases differ from the parent phase in structure andcomposition. The high velocity of the transformation is very difficult to explain by thediffusion theory of solid state phase transition.