Ni-based bulk amorphous alloys in the Ni-Ti-Zr-(Si,Sn) system

S. Yi; T. G. Park; D. H. Kim

doi:10.1557/JMR.2000.0348

Ni-based bulk amorphous alloys in the Ni-Ti-Zr-(Si,Sn) system

S. Yi, T. G. Park, D. H. Kim

Department of Materials Science and Engineering

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

106 Citations (Scopus)

Abstract

New Ni-based bulk amorphous alloys in the alloy system Ni-Ti-Zr-(Si,Sn) were developed through systematic alloy design based upon the empirical rules for high glass forming alloys. Small additions of Si and/or Sn significantly improved the glass forming ability (GFA) of the alloys Ni₅₇Ti_23-xZr₂₀(Si,Sn)_x leading to a Ni-based bulk amorphous alloy. The amorphous ribbons of the alloys Ni₅₇Ti_23-xZr₂₀(Si,Sn)_x exhibited very high glass transition temperatures (T_g > 823 K), crystallization temperatures (T_x > 883 K), and large undercooled liquid regions (ΔT_x > 50 K) implying the high GFA of the alloys. Fully amorphous rods with the diameter of up to 2 mm can be fabricated by a copper mold casting method. Development of the new Ni-based bulk amorphous alloys having high T_g, T_x, and ΔT_x expands the practical applications of amorphous alloys as structural materials.

Original language	English
Pages (from-to)	2425-2430
Number of pages	6
Journal	Journal of Materials Research
Volume	15
Issue number	11
DOIs	https://doi.org/10.1557/JMR.2000.0348
Publication status	Published - 2000 Nov

Bibliographical note

Funding Information:
This work was supported by Creative Research Initiatives of the Korean Ministry of Science and Technology.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/JMR.2000.0348

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title = "Ni-based bulk amorphous alloys in the Ni-Ti-Zr-(Si,Sn) system",

abstract = "New Ni-based bulk amorphous alloys in the alloy system Ni-Ti-Zr-(Si,Sn) were developed through systematic alloy design based upon the empirical rules for high glass forming alloys. Small additions of Si and/or Sn significantly improved the glass forming ability (GFA) of the alloys Ni57Ti23-xZr20(Si,Sn)x leading to a Ni-based bulk amorphous alloy. The amorphous ribbons of the alloys Ni57Ti23-xZr20(Si,Sn)x exhibited very high glass transition temperatures (Tg > 823 K), crystallization temperatures (Tx > 883 K), and large undercooled liquid regions (ΔTx > 50 K) implying the high GFA of the alloys. Fully amorphous rods with the diameter of up to 2 mm can be fabricated by a copper mold casting method. Development of the new Ni-based bulk amorphous alloys having high Tg, Tx, and ΔTx expands the practical applications of amorphous alloys as structural materials.",

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AU - Park, T. G.

AU - Kim, D. H.

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Y1 - 2000/11

N2 - New Ni-based bulk amorphous alloys in the alloy system Ni-Ti-Zr-(Si,Sn) were developed through systematic alloy design based upon the empirical rules for high glass forming alloys. Small additions of Si and/or Sn significantly improved the glass forming ability (GFA) of the alloys Ni57Ti23-xZr20(Si,Sn)x leading to a Ni-based bulk amorphous alloy. The amorphous ribbons of the alloys Ni57Ti23-xZr20(Si,Sn)x exhibited very high glass transition temperatures (Tg > 823 K), crystallization temperatures (Tx > 883 K), and large undercooled liquid regions (ΔTx > 50 K) implying the high GFA of the alloys. Fully amorphous rods with the diameter of up to 2 mm can be fabricated by a copper mold casting method. Development of the new Ni-based bulk amorphous alloys having high Tg, Tx, and ΔTx expands the practical applications of amorphous alloys as structural materials.

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Ni-based bulk amorphous alloys in the Ni-Ti-Zr-(Si,Sn) system

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