Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system

S. Yi; J. K. Lee; W. T. Kim; D. H. Kim

doi:10.1016/S0022-3093(01)00801-8

Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system

S. Yi, J. K. Lee, W. T. Kim, D. H. Kim

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Abstract

We report on the fabrication and properties of the new Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system that have high glass forming ability (GFA) and large undercooled region (ΔT_X), which corresponds to the temperature difference between glass transition temperature and the onset temperature of a first crystallization event. The compositional range for the formation of the amorphous alloys that have large ΔT_X (>30K) is defined in the pseudo-ternary phase diagram Ni-(Ti,Zr)-Si. Some alloys can be fabricated as fully amorphous rods 2 mm diameter through an injection casting method. Si effects on the crystallization behavior of these new Ni-based amorphous alloys are also investigated and related to the GFA and the ΔT_X.

Original language	English
Pages (from-to)	132-136
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	291
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-3093(01)00801-8
State	Published - Oct 2001

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abstract = "We report on the fabrication and properties of the new Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system that have high glass forming ability (GFA) and large undercooled region (ΔTX), which corresponds to the temperature difference between glass transition temperature and the onset temperature of a first crystallization event. The compositional range for the formation of the amorphous alloys that have large ΔTX (>30K) is defined in the pseudo-ternary phase diagram Ni-(Ti,Zr)-Si. Some alloys can be fabricated as fully amorphous rods 2 mm diameter through an injection casting method. Si effects on the crystallization behavior of these new Ni-based amorphous alloys are also investigated and related to the GFA and the ΔTX.",

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AU - Kim, D. H.

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AB - We report on the fabrication and properties of the new Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system that have high glass forming ability (GFA) and large undercooled region (ΔTX), which corresponds to the temperature difference between glass transition temperature and the onset temperature of a first crystallization event. The compositional range for the formation of the amorphous alloys that have large ΔTX (>30K) is defined in the pseudo-ternary phase diagram Ni-(Ti,Zr)-Si. Some alloys can be fabricated as fully amorphous rods 2 mm diameter through an injection casting method. Si effects on the crystallization behavior of these new Ni-based amorphous alloys are also investigated and related to the GFA and the ΔTX.

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Ni-based bulk amorphous alloys in the Ni-Ti-Zr-Si system

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