### Abstract

The reversible structural relaxation of Fe_{37.5}Ni_{37.5}B_{25-x}P_{x} (x = 0, 3, 6, 16, 25) and Fe_{37.5}Ni_{37.5}B_{25-y}Si_{y} (y = 0, 5, 10, 15) metallic glasses was investigated using the activation energy spectra (AES) model by differential scanning calorimetry (DSC) and resistivity measurements. From the deduced activation enthalpy spectra for these amorphous alloys, it is concluded that possibilities for atomic movements with characteristic activation energies are created by the substitution of B with P or Si. It is shown that at least one Gaussian contribution to the AES appears on increasing P or Si content, superimposed on an exponential part previously found for Fe-Ni-B glasses. The amplitude of the Gaussian function increases with increasing P or Si content while its position decreases with increasing P and remains constant with increasing Si content. According to isothermal resistivity measurements, for P substitution the reversible atomic rearrangements connected to the Gaussian contribution increase the resistivity while those associated with the exponential part decrease it. For Si substitution both processes decrease the resistivity.

Original language | English |
---|---|

Pages (from-to) | 490-496 |

Number of pages | 7 |

Journal | Journal of Non-Crystalline Solids |

Volume | 232-234 |

Publication status | Published - Jul 11 1998 |

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### ASJC Scopus subject areas

- Ceramics and Composites
- Electronic, Optical and Magnetic Materials

### Cite this

*Journal of Non-Crystalline Solids*,

*232-234*, 490-496.

**Effect of metalloid substitution on the reversible structural relaxation of Fe-Ni-B(-P, Si) metallic glasses.** / Böhönyey, A.; Huhn, G.; Kiss, L.; Lovas, A.; Geröcs, I.

Research output: Contribution to journal › Article

*Journal of Non-Crystalline Solids*, vol. 232-234, pp. 490-496.

}

TY - JOUR

T1 - Effect of metalloid substitution on the reversible structural relaxation of Fe-Ni-B(-P, Si) metallic glasses

AU - Böhönyey, A.

AU - Huhn, G.

AU - Kiss, L.

AU - Lovas, A.

AU - Geröcs, I.

PY - 1998/7/11

Y1 - 1998/7/11

N2 - The reversible structural relaxation of Fe37.5Ni37.5B25-xPx (x = 0, 3, 6, 16, 25) and Fe37.5Ni37.5B25-ySiy (y = 0, 5, 10, 15) metallic glasses was investigated using the activation energy spectra (AES) model by differential scanning calorimetry (DSC) and resistivity measurements. From the deduced activation enthalpy spectra for these amorphous alloys, it is concluded that possibilities for atomic movements with characteristic activation energies are created by the substitution of B with P or Si. It is shown that at least one Gaussian contribution to the AES appears on increasing P or Si content, superimposed on an exponential part previously found for Fe-Ni-B glasses. The amplitude of the Gaussian function increases with increasing P or Si content while its position decreases with increasing P and remains constant with increasing Si content. According to isothermal resistivity measurements, for P substitution the reversible atomic rearrangements connected to the Gaussian contribution increase the resistivity while those associated with the exponential part decrease it. For Si substitution both processes decrease the resistivity.

AB - The reversible structural relaxation of Fe37.5Ni37.5B25-xPx (x = 0, 3, 6, 16, 25) and Fe37.5Ni37.5B25-ySiy (y = 0, 5, 10, 15) metallic glasses was investigated using the activation energy spectra (AES) model by differential scanning calorimetry (DSC) and resistivity measurements. From the deduced activation enthalpy spectra for these amorphous alloys, it is concluded that possibilities for atomic movements with characteristic activation energies are created by the substitution of B with P or Si. It is shown that at least one Gaussian contribution to the AES appears on increasing P or Si content, superimposed on an exponential part previously found for Fe-Ni-B glasses. The amplitude of the Gaussian function increases with increasing P or Si content while its position decreases with increasing P and remains constant with increasing Si content. According to isothermal resistivity measurements, for P substitution the reversible atomic rearrangements connected to the Gaussian contribution increase the resistivity while those associated with the exponential part decrease it. For Si substitution both processes decrease the resistivity.

UR - http://www.scopus.com/inward/record.url?scp=0347087926&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0347087926&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0347087926

VL - 232-234

SP - 490

EP - 496

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

ER -