ON THE METASTABLE STATES OF AMORPHOUS Fe-B ALLOYS

Stability studies on Fe-B alloys have been conducted for establishing the interdependence of the thermal properties of crystallization and the changes in the electronic structure. For thermal analysis DTA, for electronic structure analysis SXS method was used. A correlation of the electronic structure and the heat of crystallization was observed. Based on the above information, the role of the electronic structure in determining the stability is established for Fe1-xBx (0.1≤ x ≤ 0.2) binary alloys and some ternary alloys with transition elements (TM). General remarks are made concerning the stability based on the trends of measured data

Correlation between the structural and electronic stabililty factors

A correlation between electronic density of states and heat of crystallization for FeSiB and FeWB amorphous metals was observed. The stabilization effect of electronic structure on the amorphous metastable state is demonstrated

The metastable states of some amorphous Fe-B alloys

The interdependence of the electronic and thermal properties and their effect on the stability of some Fe86.5-xTMxB13.5 (TM is transition metal, 0 less-than-or-equal-to x less-than-or-equal-to 5) alloys is investigated. Differential thermoanalysis and soft X-ray fluorescent spectroscopy were used to measure the thermodynamic phase changes and the partial electronic density of states, respectively. A general role of the electronic effects on the thermal stability is suggested from the trend of the measured data. It is concluded that the thermal stability is effectively controlled by the actual electronic structure of the alloy

The metastable states of some amorphous Fe-B alloys

The interdependence of the electronic and thermal properties and their effect on the stability of some Fe86.5-xTMxB13.5 (TM is transition metal, 0 less-than-or-equal-to x less-than-or-equal-to 5) alloys is investigated. Differential thermoanalysis and soft X-ray fluorescent spectroscopy were used to measure the thermodynamic phase changes and the partial electronic density of states, respectively. A general role of the electronic effects on the thermal stability is suggested from the trend of the measured data. It is concluded that the thermal stability is effectively controlled by the actual electronic structure of the alloy