Short-range order of Cr and Mo in amorphous steels by EXAFS. Influence of structural changes in the ductility and mechanical properties of steels
Type of activity
European Synchrotron Radiation Facilities (ESRF)-Grenoble-Francia
Funding entity code
The aim of the experiment was to obtain information about the local atomic environment of Molybdenum, Chromium, and Iron atoms in melt-spun ribbons of amorphous steels of Fe(71.2-x)C(7.0)B(3.3)P(5.5)Cr(2.3)Mo(x) with the Mo concentration varying between 0 and 6.5 at. %. These compositions were previously characterized by Mössbauer spectroscopy in our lab and by x-ray diffraction at the beamline BM16 at ESRF and showed different iron environments that correlated with changes in the glass forming ability reported in the literature . Therefore the main result searched for with this proposal was the assessment of the local environments of Mo sites, in order to establish how the atomic configuration changed upon doping and how these changes influence macroscopic properties such as the critical size of amorphous casting and the domain distributions observed using Mössbauer spectroscopy.