Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions

C. K. Lin; Y. B. Feng; P. Y. Lee; L. Y. Wang; H. M. Lin; G. S. Chen

doi:10.1016/S0966-9795(02)00156-5

Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions

C. K. Lin, Y. B. Feng, P. Y. Lee, L. Y. Wang, H. M. Lin, G. S. Chen

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

10 Citations (Scopus)

Abstract

This study examined the amorphization behavior of Ni₅₇Zr₂₀Ti_23-xSi_x (x = 0, 1, 3) alloy powders synthesized by mechanical alloying technique. According to the results, after 5 h of milling, the mechanically alloyed powders were amorphous at compositions of Ni₅₇Zr₂₀Ti_23-xSi_x (x = 0, 1, 3). The amorphization behavior of Ni₅₇Zr₂₀Ti₂₀Si₃ was examined in details. The conventional X-ray diffraction and synchrotron EXAFS results confirm that the fully amorphous powders formed after 5 h of milling. The thermal stability of the Ni₅₇Zr₂₀Ti_23-xSi_x amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the amorphous powders were found to exhibit a large supercooled liquid region before crystallization. The supercooled liquid regions, defined by the difference between T_g and T_x, (i.e. ΔT = T_g-T_x), are 95 K, 66 K, and 88 K, for Ni₅₇Zr₂₀Ti₂₃, Ni₅₇Zr₂₀Ti₂₂Si₁, and Ni₅₇Zr₂₀Ti₂₀Si₃, respectively.

Original language	English
Pages (from-to)	1149-1155
Number of pages	7
Journal	Intermetallics
Volume	10
Issue number	11-12
DOIs	https://doi.org/10.1016/S0966-9795(02)00156-5
Publication status	Published - Nov 2002
Externally published	Yes

Keywords

C. Mechanical alloying and milling

ASJC Scopus subject areas

General Chemistry
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions",

abstract = "This study examined the amorphization behavior of Ni57Zr20Ti23-xSix (x = 0, 1, 3) alloy powders synthesized by mechanical alloying technique. According to the results, after 5 h of milling, the mechanically alloyed powders were amorphous at compositions of Ni57Zr20Ti23-xSix (x = 0, 1, 3). The amorphization behavior of Ni57Zr20Ti20Si3 was examined in details. The conventional X-ray diffraction and synchrotron EXAFS results confirm that the fully amorphous powders formed after 5 h of milling. The thermal stability of the Ni57Zr20Ti23-xSix amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the amorphous powders were found to exhibit a large supercooled liquid region before crystallization. The supercooled liquid regions, defined by the difference between Tg and Tx, (i.e. ΔT = Tg-Tx), are 95 K, 66 K, and 88 K, for Ni57Zr20Ti23, Ni57Zr20Ti22Si1, and Ni57Zr20Ti20Si3, respectively.",

keywords = "C. Mechanical alloying and milling",

author = "Lin, {C. K.} and Feng, {Y. B.} and Lee, {P. Y.} and Wang, {L. Y.} and Lin, {H. M.} and Chen, {G. S.}",

year = "2002",

month = nov,

doi = "10.1016/S0966-9795(02)00156-5",

language = "English",

volume = "10",

pages = "1149--1155",

journal = "Intermetallics",

issn = "0966-9795",

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TY - JOUR

T1 - Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions

AU - Lin, C. K.

AU - Feng, Y. B.

AU - Lee, P. Y.

AU - Wang, L. Y.

AU - Lin, H. M.

AU - Chen, G. S.

PY - 2002/11

Y1 - 2002/11

N2 - This study examined the amorphization behavior of Ni57Zr20Ti23-xSix (x = 0, 1, 3) alloy powders synthesized by mechanical alloying technique. According to the results, after 5 h of milling, the mechanically alloyed powders were amorphous at compositions of Ni57Zr20Ti23-xSix (x = 0, 1, 3). The amorphization behavior of Ni57Zr20Ti20Si3 was examined in details. The conventional X-ray diffraction and synchrotron EXAFS results confirm that the fully amorphous powders formed after 5 h of milling. The thermal stability of the Ni57Zr20Ti23-xSix amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the amorphous powders were found to exhibit a large supercooled liquid region before crystallization. The supercooled liquid regions, defined by the difference between Tg and Tx, (i.e. ΔT = Tg-Tx), are 95 K, 66 K, and 88 K, for Ni57Zr20Ti23, Ni57Zr20Ti22Si1, and Ni57Zr20Ti20Si3, respectively.

AB - This study examined the amorphization behavior of Ni57Zr20Ti23-xSix (x = 0, 1, 3) alloy powders synthesized by mechanical alloying technique. According to the results, after 5 h of milling, the mechanically alloyed powders were amorphous at compositions of Ni57Zr20Ti23-xSix (x = 0, 1, 3). The amorphization behavior of Ni57Zr20Ti20Si3 was examined in details. The conventional X-ray diffraction and synchrotron EXAFS results confirm that the fully amorphous powders formed after 5 h of milling. The thermal stability of the Ni57Zr20Ti23-xSix amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the amorphous powders were found to exhibit a large supercooled liquid region before crystallization. The supercooled liquid regions, defined by the difference between Tg and Tx, (i.e. ΔT = Tg-Tx), are 95 K, 66 K, and 88 K, for Ni57Zr20Ti23, Ni57Zr20Ti22Si1, and Ni57Zr20Ti20Si3, respectively.

KW - C. Mechanical alloying and milling

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ER -

Investigations of mechanically alloyed Ni-Zr-Ti-Si amorphous alloys with significant supercooled regions

Abstract

Keywords

ASJC Scopus subject areas

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