摘要
By using the new method for determination of activation energies for nucleation andgrowth (E_n & E_g) developed in Part Ⅰ of this work, the E_n and E_g of some pre--annealedamorphous Ni--P alloys, as well as those of the as--quenched Ni--P glass within differenttemperature ranges are measured and studied. The results show that the values of E_n and E_gare closely related to the microstructure of amorphous alloys and the annealing temperature.The higher the ordering in the amorphous alloys, the smaller the values of E_n and E_g; thehigher the annealing temperature, the greater the E_n and E_g values. By means of the newlydeveloped crystallization micromechanism, such an experimental phenomenon which is diffi-cult to understand from the classical crystallization mechanism is reasonably explained.
By using the new method for determination of activation energies for nucleation and
growth (E_n & E_g) developed in Part Ⅰ of this work, the E_n and E_g of some pre--annealed
amorphous Ni--P alloys, as well as those of the as--quenched Ni--P glass within different
temperature ranges are measured and studied. The results show that the values of E_n and E_g
are closely related to the microstructure of amorphous alloys and the annealing temperature.
The higher the ordering in the amorphous alloys, the smaller the values of E_n and E_g; the
higher the annealing temperature, the greater the E_n and E_g values. By means of the newly
developed crystallization micromechanism, such an experimental phenomenon which is diffi-
cult to understand from the classical crystallization mechanism is reasonably explained.
基金
Project suopotted by the National Natural Science Foundation of China
