Characterisation of Fe40Ni38B18 Mo4 nanomagnetic alloy

S. W. Du; R. V. Ramanujan

doi:10.1016/j.msea.2003.10.052

Characterisation of Fe₄₀Ni₃₈B₁₈ Mo₄ nanomagnetic alloy

S. W. Du, R. V. Ramanujan^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The crystallization behavior and microstructure of an iron-nickel based amorphous alloy (Fe₄₀Ni₃₈B₁₈ Mo₄) was studied. The phase transformation temperatures were determined by DSC and electrical resistivity, and found to be approximately 693 and 798 K. The enthalpy change and activation energy was also calculated from DSC results. X-ray diffraction (XRD) was employed to determine the crystallization product at different temperatures, the precipitates were found to be the (Fe, Ni) and (FeNiMo)₂₃B₆ phases. Transmission electron microscope (TEM) studies of heat treated samples showed that nano-precipitates had formed in the amorphous matrix.

Original language	English
Pages (from-to)	1040-1043
Number of pages	4
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	375-377
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.msea.2003.10.052
Publication status	Published - Jul 15 2004
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Keywords

Amorphous materials
Crystallization
Electron microscopy
Nanomaterials

Access to Document

10.1016/j.msea.2003.10.052

Cite this

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title = "Characterisation of Fe40Ni38B18 Mo4 nanomagnetic alloy",

abstract = "The crystallization behavior and microstructure of an iron-nickel based amorphous alloy (Fe40Ni38B18 Mo4) was studied. The phase transformation temperatures were determined by DSC and electrical resistivity, and found to be approximately 693 and 798 K. The enthalpy change and activation energy was also calculated from DSC results. X-ray diffraction (XRD) was employed to determine the crystallization product at different temperatures, the precipitates were found to be the (Fe, Ni) and (FeNiMo)23B6 phases. Transmission electron microscope (TEM) studies of heat treated samples showed that nano-precipitates had formed in the amorphous matrix.",

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AU - Du, S. W.

AU - Ramanujan, R. V.

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N2 - The crystallization behavior and microstructure of an iron-nickel based amorphous alloy (Fe40Ni38B18 Mo4) was studied. The phase transformation temperatures were determined by DSC and electrical resistivity, and found to be approximately 693 and 798 K. The enthalpy change and activation energy was also calculated from DSC results. X-ray diffraction (XRD) was employed to determine the crystallization product at different temperatures, the precipitates were found to be the (Fe, Ni) and (FeNiMo)23B6 phases. Transmission electron microscope (TEM) studies of heat treated samples showed that nano-precipitates had formed in the amorphous matrix.

AB - The crystallization behavior and microstructure of an iron-nickel based amorphous alloy (Fe40Ni38B18 Mo4) was studied. The phase transformation temperatures were determined by DSC and electrical resistivity, and found to be approximately 693 and 798 K. The enthalpy change and activation energy was also calculated from DSC results. X-ray diffraction (XRD) was employed to determine the crystallization product at different temperatures, the precipitates were found to be the (Fe, Ni) and (FeNiMo)23B6 phases. Transmission electron microscope (TEM) studies of heat treated samples showed that nano-precipitates had formed in the amorphous matrix.

KW - Amorphous materials

KW - Crystallization

KW - Electron microscopy

KW - Nanomaterials

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