摘要
The technique of mechanical alloying(MA) for preparing amorphous Fe-Zr-B-(Cu) alloys has been studied The structure of samples was analysed by X-ray diffractometry, electron microscopy and Mssbauer spectroscopy.The results show that Fe78Zr10B12 sample of a nearly complete amorphous phase may be prepared but in Fe91Zr7B2 sample metastable b c c phase was obtained Using the same procedure a mixture of amorphous phase and α-Fe(Zr, B) was generated in Fe85Zr7B8. Furthermore,the results of Mssbauer reveal that there are two kinds of short-range ordered phases in the sample. While adding Iat% Cu in Fe78Zr10B12 or Fe85Zr7B8 sample, it is found that the hyperfine field of amorphous phases decreases significantly.
The technique of mechanical alloying(MA) for preparing amorphous Fe-Zr-B-(Cu) alloys has been studied The structure of samples was analysed by X-ray diffractometry, electron microscopy and Mssbauer spectroscopy.The results show that Fe78Zr10B12 sample of a nearly complete amorphous phase may be prepared but in Fe91Zr7B2 sample metastable b c c phase was obtained Using the same procedure a mixture of amorphous phase and α-Fe(Zr, B) was generated in Fe85Zr7B8. Furthermore,the results of Mssbauer reveal that there are two kinds of short-range ordered phases in the sample. While adding Iat% Cu in Fe78Zr10B12 or Fe85Zr7B8 sample, it is found that the hyperfine field of amorphous phases decreases significantly.
