Enhancement of plasticity of Fe-based bulk metallic glass by Ni substitution for Fe

Bulk metallic glasses (BMGs) (Fe 1− x Ni x ) 71Mo 5P 12C 10B 2 ( x = 0, 0.1 and 0.2) with a diameter of 3 mm were synthesized by copper mold casting. The effect of Ni substitution for Fe on the structure, thermal and mechanical properties has been studied by X-ray diffraction (XRD), differential sca...

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Bibliographic Details
Published in:Journal of alloys and compounds 2010-08, Vol.504, p.S78-S81
Main Authors: Guo, S.F., Li, N., Zhang, C., Liu, L.
Format: Article
Language:English
Subjects:
Amorphous materials
Mechanical property
Thermal analysis
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Summary:Bulk metallic glasses (BMGs) (Fe 1− x Ni x ) 71Mo 5P 12C 10B 2 ( x = 0, 0.1 and 0.2) with a diameter of 3 mm were synthesized by copper mold casting. The effect of Ni substitution for Fe on the structure, thermal and mechanical properties has been studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and compressive testing. It was found that the substitution of Ni for Fe enhances the glass forming ability, and improves the plasticity of Fe 71Mo 5P 12C 10B 2 BMG as indicated by the increase in the plastic strain from 3.1% ( x = 0) to 5.2% ( x = 0.2). The improvement of the plasticity is discussed in term of the reduction of glass transition temperature and the supercooled liquid region due to the substitution of Ni for Fe.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2010.02.058