Structural changes in liquid Fe and Fe-B alloy on cooling

DV Louzguine-Luzgin and K Georgarakis and A Tsarkov and A Solonin and V Honkimaki and L Hennet and AR Yavari, JOURNAL OF MOLECULAR LIQUIDS, 209, 233-238 (2015).

DOI: 10.1016/j.molliq.2015.05.062

The existence of liquid-liquid phase transitions has been suggested for liquid Fe and some of its alloys. In order to shed light on this phenomenon in-situ cooling of the Fe80B20 and Fe melts was performed under a synchrotron beam radiation. It allowed for the continuous acquisition of X-ray diffraction spectra in the supercooled liquid region below the liquidus temperature. The procedure allowed monitoring of the structural changes in the supercooled liquid state using real- space atomic pair PDF(R) and radial RDF(R) distribution functions. The results are discussed in comparison with those of molecular dynamics simulation for liquid Fe. (C) 2015 Elsevier B.V. All rights reserved.

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