Published date:Apr 15 2019

Journal Title: KnE Engineering

Issue title: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”

Pages:164–169

DOI: 10.18502/keg.v1i1.4405

A. S. Yurovskikh

N. N. Nikul’chenkov

A. A. Redikultsev

Z. Z. Lutfieva

M. L. Lobanov

The effect of copper and manganese on the amorphization process in the surface layer of a technical Fe-3% Si alloy during annealing in the α → γ transition temperature range was determined by x-ray phase analysis. The presence of 0.5 wt. % Cu and 0.3 wt. % Mn in the initial Fe-3% Si solid solution significantly enhances the amorphization process that occurs when heated in the temperature range 920… 960∘C as an alternative to the α → γ phase transformation. The effect of amplification of amorphization is both in obtaining a larger amount of material in the amorphous state, and in the appearance of two amorphous phases, differing in average interatomic distance. The composition of the amorphous phase is approximately described as Fe89Si6Mg4Mn0.5Cu0.5 in the presence of Cu and Mn atoms and Fe90Si6Mg4 in the case of their absence in the amorphous layer.

Keywords: amorphization, non-ambient x-ray diffraction, Fe-3%Si, phase transition, thermal stability.

[1] W. Klement Jun, R. H. Willens and P. Duwez, Non-crystalline Structure in Solidified Gold-Silicon Alloys, Nature. 187 (1960) 869-870.


[2] A. Inoue, A. Takeuchi, Recent development and application products of bulk glassy alloys, Acta Materialia, 59 (2011) 2243-2267.


[3] A. H. Hunter, V. Araullo-Peter, M. Gibbons, and at al., Three-dimensional imaging of shear bands in bulk metallic glass composites, Journal of Microscopy. 00. Issue (2016) 1-7.


[4] V. Schnabel, D. Music, W. J. Clegg, and at al., Ultra-stiff metallic glasses through bond energy density design, Journal of Physics Condensed Matter. No 3 (2017) 1-28.


[5] B. Zang, R. Parsons, K. Onoder, and at al., Effect of heating rate during primary crystallization on soft magnetic properties of melt-spun Fe-B alloys, Scripta Materialia. 132 (2017) 68-72.


[6] K. Suzuki, R. Parsons, B. Zang, and at al., Copper-free nanocrystalline soft magnetic materials with high saturation magnetization comparable to that of Si steel, Applied Physics Letters. 110 (2017) 0124407.


[7] M. L. Lobanov, A. I. Gomzikov, S. V. Akulov, and at. al., Decarburizing annealing of technical alloy Fe-3%Si / Metal Science and Heat Treatment. 47, No 9-10 (2005) 478- 483.


[8] M. L. Lobanov, A. S. Yurovskih, Thermochemical Treatment of Anisotropic Electrical Steel, Metal Science and Heat Treatment. 58 (2017) 667-673.


[9] Z. Z. Lutfieva, Е. V. Luk’yanova, A. S. Yurovskikh, High-temperature amorphization of Fe-Si-Mg-O thin foils of the system, Ural School of Metal Scientists of Young Scientists. Yekaterinburg: UrFU. (2016) 309–313. (in russ.).


[10] S. Jung, M. S. Kwon, J. Park, and at. al., A TEM Study of Oxide Layers Formed during Decarburization Annealing of Electrical Steel, ISIJ International. 51 (2011) 1163-1168.