Bulk glass formation in the Ni-Zr-Ti-Nb-Si-Sn alloy system

J. Y. Lee, DongHyun Bae, J. K. Lee, Do Hyang Kim

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

In this study, the effect of addition of Nb on glass formation in Ni-Ti-Zr-Si-Sn alloys has been studied. The composition range for bulk glass formation with Dmax > 2 mm (Dmax, maximum diameter for glass formation by injection cast method) becomes wider when compared with the non-Nb-containing alloy. The ΔTx (= Tx - Tg; Tx, crystallization onset temperature; Tg, glass transition temperature), Trg (= Tg/Tl; Tl, liquidus temperature) and γ [= Tx/(Tl + Tg ] values for the alloys Dmax > 2 mm are in the range of 40-59, 0.638-0.651, and 0.410-0.419, respectively. The compositions of the alloys (Dmax > 2 mm) are closer to pseudo-eutectic composition than that of the alloy without Nb, showing an improved glass forming ability. The critical cooling rate for glass formation (Dmax = 5 mm) is estimated to be order of approximately 40 K/s.

Original languageEnglish
Pages (from-to)2221-2225
Number of pages5
JournalJournal of Materials Research
Volume19
Issue number8
DOIs
Publication statusPublished - 2004 Aug 1

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Glass
glass
Chemical analysis
liquidus
Crystallization
eutectics
Eutectics
glass transition temperature
casts
crystallization
injection
Cooling
cooling
Temperature
temperature

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "In this study, the effect of addition of Nb on glass formation in Ni-Ti-Zr-Si-Sn alloys has been studied. The composition range for bulk glass formation with Dmax > 2 mm (Dmax, maximum diameter for glass formation by injection cast method) becomes wider when compared with the non-Nb-containing alloy. The ΔTx (= Tx - Tg; Tx, crystallization onset temperature; Tg, glass transition temperature), Trg (= Tg/Tl; Tl, liquidus temperature) and γ [= Tx/(Tl + Tg ] values for the alloys Dmax > 2 mm are in the range of 40-59, 0.638-0.651, and 0.410-0.419, respectively. The compositions of the alloys (Dmax > 2 mm) are closer to pseudo-eutectic composition than that of the alloy without Nb, showing an improved glass forming ability. The critical cooling rate for glass formation (Dmax = 5 mm) is estimated to be order of approximately 40 K/s.",
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Bulk glass formation in the Ni-Zr-Ti-Nb-Si-Sn alloy system. / Lee, J. Y.; Bae, DongHyun; Lee, J. K.; Kim, Do Hyang.

In: Journal of Materials Research, Vol. 19, No. 8, 01.08.2004, p. 2221-2225.

Research output: Contribution to journalArticle

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AU - Bae, DongHyun

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AB - In this study, the effect of addition of Nb on glass formation in Ni-Ti-Zr-Si-Sn alloys has been studied. The composition range for bulk glass formation with Dmax > 2 mm (Dmax, maximum diameter for glass formation by injection cast method) becomes wider when compared with the non-Nb-containing alloy. The ΔTx (= Tx - Tg; Tx, crystallization onset temperature; Tg, glass transition temperature), Trg (= Tg/Tl; Tl, liquidus temperature) and γ [= Tx/(Tl + Tg ] values for the alloys Dmax > 2 mm are in the range of 40-59, 0.638-0.651, and 0.410-0.419, respectively. The compositions of the alloys (Dmax > 2 mm) are closer to pseudo-eutectic composition than that of the alloy without Nb, showing an improved glass forming ability. The critical cooling rate for glass formation (Dmax = 5 mm) is estimated to be order of approximately 40 K/s.

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