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1

Analysis and Computer Modeling of Magnetoelastic Characteristics of FeNi-based Amorphous Ring-shaped Core under Uniform Compressive and Tensile Stresses

100%

Szewczyk R., Salach J., Bieńkowski A., Jackiewicz D.

Theoretical and Applied Informatics

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2013

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vol. 25

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issue 1

2

Hydrogen Evolution Reaction on the Oxidized Surfaces of the Fe-Based Amorphous Alloys

88%

Danyliak M., Boichyshyn L., Pandiak N.

Acta Physica Polonica A

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2018

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vol. 133

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issue 4

1103-1107

EN

Electrochemical hydrogen evolution on oxidized electrodes of the amorphous metallic alloys Fe₈₂Nb₂B₁₄RE₂ (RE = Tb, Dy) in 5.0 M KOH aqueous solution in the temperature range 298-313 ± 0.5 K has been investigated. A sample Fe₈₄Nb₂B₁₄ was used as reference alloy. The highest corrosion resistance during multiple scanning of the potential exhibited the alloys doped by terbium and dysprosium. High values of the exchange currents, characterizing catalytic ability and corrosion resistance characterize Fe₈₂Nb₂B₁₄RE₂ amorphous alloys as promising electrode materials for hydrogen evolution reaction.

3

Hyperfine interaction and some thermomagnetic properties of amorphous and partially crystallized Fe70−xMxMo5Cr4Nb6B15(M = Co or Ni,x= 0 or 10) alloys

88%

Rzącki J., Świerczek J., Hasiak M., Olszewski J., Zbroszczyk J., Ciurzyńska W.

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issue 1

121-126

EN

As revealed by Mössbauer spectroscopy, replacement of 10 at.% of iron in the amorphous Fe70Mo5Cr4Nb6B15 alloy by cobalt or nickel has no effect on the magnetic structure in the vicinity of room temperature, although the Curie point moves from 190 K towards ambient one. In the early stages of crystallization, the paramagnetic crystalline Cr12Fe36Mo10 phase appears before α-Fe or α-FeCo are formed, as is confirmed by X-ray diffractometry and transmission electron microscopy. Creation of the crystalline Cr12Fe36Mo10 phase is accompanied by the amorphous ferromagnetic phase formation at the expense of amorphous paramagnetic one.

4

Glass-forming ability and thermal stability of Fe62Nb8−xZrxB30 and Fe72Zr8B20 amorphous alloys?

63%

Shapaan M., Lábár J., Varga L., Lendvai J.

Open Physics

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2004

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vol. 2

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issue 1

104-119

EN

Glass-forming ability (GFA) and thermal stability of Fe62Nb8B30, Fe62Nb6Zr2B30 and Fe72Zr8B20 at % amorphous alloys were investigated by calorimetric (DSC and DTA) measurements. The crystallization kinetics was studied by DSC in the mode of continuous versus linear heating and it was found that both the glass transition temperature, Tg, and the crystallization peak temperature, Tp, display strong dependence on the heating rate. The partial replacement of Nb by Zr leads to lower Tg and Tx temperatures and causes a decrease of the supercooled liquid region. JMA analysis of isothermal transformation data measured between Tg and Tx suggests that the crystallization of the Fe62Nb8B30 and Fe62Nb6Zr2B30 amorphous alloys take place by three-dimensional growth with constant nucleation rate. Nb enhances the precipitation of the metastable Fe23B6 phase and stabilizes it up to the third crystallization stage. Zr addition increases the lattice constant of Fe23B6 and, at the same time, decreases the grain size.

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1 Acta Physica Polonica A

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1 Theoretical and Applied Informatics

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1 Boichyshyn L.

1 Ciurzyńska W.

1 Danyliak M.

1 Hasiak M.

1 Jackiewicz D.

1 Lendvai J.

1 Lábár J.

1 Olszewski J.

1 Pandiak N.

1 Rzącki J.

1 Salach J.

1 Shapaan M.

1 Szewczyk R.

1 Varga L.

1 Zbroszczyk J.

1 Świerczek J.

Analysis and Computer Modeling of Magnetoelastic Characteristics of FeNi-based Amorphous Ring-shaped Core under Uniform Compressive and Tensile Stresses

Hydrogen Evolution Reaction on the Oxidized Surfaces of the Fe-Based Amorphous Alloys

Hyperfine interaction and some thermomagnetic properties of amorphous and partially crystallized Fe70−xMxMo5Cr4Nb6B15(M = Co or Ni,x= 0 or 10) alloys

Glass-forming ability and thermal stability of Fe62Nb8−xZrxB30 and Fe72Zr8B20 amorphous alloys?