The Structural Stability of Soft Magnetic Fe-Co-Zr-W-B Metallic Glasses Investigated by the in-situ X-ray Diffraction

S. Michalika,b, J. Bednarcikc, P. Pawlikd, R. Matijae and P. Sovakb aInstitute of Physics of the ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8, Czech Republic bInstitute of Physics, Park Angelinum 9, 041 54 Kosice, Slovakia cDeutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany dInstitute of Physics, Czestochowa University of Technology, Al. A. Krajowej 19, 42-200 Czestochowa, Poland eFaculty of manufacturing technologies of Technical University of Kosice with a seat in Presov, Bayerova 1, 080 01 Presov, Slovakia

Full Text PDF

The atomic structure of as-prepared Fe61Co(14-x)Zr5WxB20 (x=1, 2 and 4) ribbon samples and their thermal stability were investigated by in-situ high-energy X-ray diffraction experiments. It was observed that higher W concentration causes the tiny shift of the main peak of the reduced atomic pair distribution function to higher values of interatomic distances and increases the coefficient of volume thermal expansion. The crystallization process occurs in two steps and is qualitatively the same for all studied specimens. Firstly the Fe23B6 phase is created and later is transformed to other types of borides together with the creation of a Fe-based phase.

DOI: 10.12693/APhysPolA.126.66 PACS numbers: 61.05.cp, 61.43.Dq