摘要
根据对非晶态合金微观结构的分析和原位加热TEM观察非晶态Ni-P合金薄膜动态晶化过程的实验结果,本文提出了一个新的晶化微观机制,即非晶态合金的晶化过程由两个不同过程组成;(1)单原子由非晶态问晶胚(或晶体)表面的扩散过程;(2)有序原子团的长大及切变合并或切变沉积过程。部分晶化非晶态Ni-P合金的TEM观察结果为新晶化微观机制的适用性提供了证据。并用此机制解释了晶化过程中的初生晶体结构形态等实验结果。
Based on both the authors' experimental results of the in situ TEM
observation of dynamic crystallization in amorphous Ni-P alloy and the microstruc-
tural analysis on the amotyhous alloys, a new micromechanism of their crystalli-
zation has been approached. It is believed that the crystallization is composed of
two processes: the diffusion of single atoms from amorphous state to crystalline
surface, and growth of ordered clusters and their shearing combination or shearing
deposition. Its availabilty has been satisfactorily tried to explain the experimental
results of the structural configurature of the crystals formed in very early stage.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第1期B038-B043,共6页
Acta Metallurgica Sinica
关键词
非晶态
合金
晶化
微观机制
amorphous alloy
crystallization micromechanism
atomic diffusion
ordered cluster
shearing deposition
