Consolidation of amorphous Ni-Zr-Ti-Si powders by vacuum hot-pressing method

Pee Yew Lee; Shih Sheng Hung; Jei Te Hsieh; Yu Lom Lin; Chung Kwei Lin

doi:10.1016/S0966-9795(02)00154-1

Consolidation of amorphous Ni-Zr-Ti-Si powders by vacuum hot-pressing method

Pee Yew Lee, Shih Sheng Hung, Jei Te Hsieh, Yu Lom Lin, Chung Kwei Lin

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

32 Citations (Scopus)

Abstract

In the current study, we investigated the feasibility of fabricating amorphous Ni₅₇Zr₂₀Ti₂₀Si₃ powders by mechanical alloying, and consolidating them into bulk metallic glasses by a vacuum hot pressing technique. The as-milled and hot-pressed samples were examined by X-ray diffraction, scanning electron microscope, and differential thermal analysis. According to the results, amorphous Ni₅₇Zr₂₀Ti₂₀Si₃ powders were prepared after milling elemental powder mixtures for 5 h. The amorphous powders were found to exhibit a wide supercooled liquid region of 88 K before crystallization. Bulk metallic glasses were prepared successfully by consolidating the as-milled Ni₅₇Zr₂₀Ti₂₀Si₃ amorphous powders using vacuum hot pressing in the supercooled liquid region. Vickers microhardnesses of the as-pressed samples are in the range of 788-830 kg/mm².

Original language	English
Pages (from-to)	1277-1282
Number of pages	6
Journal	Intermetallics
Volume	10
Issue number	11-12
DOIs	https://doi.org/10.1016/S0966-9795(02)00154-1
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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10.1016/S0966-9795(02)00154-1

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title = "Consolidation of amorphous Ni-Zr-Ti-Si powders by vacuum hot-pressing method",

abstract = "In the current study, we investigated the feasibility of fabricating amorphous Ni57Zr20Ti20Si3 powders by mechanical alloying, and consolidating them into bulk metallic glasses by a vacuum hot pressing technique. The as-milled and hot-pressed samples were examined by X-ray diffraction, scanning electron microscope, and differential thermal analysis. According to the results, amorphous Ni57Zr20Ti20Si3 powders were prepared after milling elemental powder mixtures for 5 h. The amorphous powders were found to exhibit a wide supercooled liquid region of 88 K before crystallization. Bulk metallic glasses were prepared successfully by consolidating the as-milled Ni57Zr20Ti20Si3 amorphous powders using vacuum hot pressing in the supercooled liquid region. Vickers microhardnesses of the as-pressed samples are in the range of 788-830 kg/mm2.",

keywords = "C. Mechanical alloying and milling",

author = "Lee, {Pee Yew} and Hung, {Shih Sheng} and Hsieh, {Jei Te} and Lin, {Yu Lom} and Lin, {Chung Kwei}",

note = "Funding Information: The authors are grateful for the financial support of this work by the National Science Council of Republic of China under Grant Nos. NSC 89-2218-E-019-018.",

year = "2002",

month = nov,

doi = "10.1016/S0966-9795(02)00154-1",

language = "English",

volume = "10",

pages = "1277--1282",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

number = "11-12",

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T1 - Consolidation of amorphous Ni-Zr-Ti-Si powders by vacuum hot-pressing method

AU - Lee, Pee Yew

AU - Hung, Shih Sheng

AU - Hsieh, Jei Te

AU - Lin, Yu Lom

AU - Lin, Chung Kwei

N1 - Funding Information: The authors are grateful for the financial support of this work by the National Science Council of Republic of China under Grant Nos. NSC 89-2218-E-019-018.

PY - 2002/11

Y1 - 2002/11

N2 - In the current study, we investigated the feasibility of fabricating amorphous Ni57Zr20Ti20Si3 powders by mechanical alloying, and consolidating them into bulk metallic glasses by a vacuum hot pressing technique. The as-milled and hot-pressed samples were examined by X-ray diffraction, scanning electron microscope, and differential thermal analysis. According to the results, amorphous Ni57Zr20Ti20Si3 powders were prepared after milling elemental powder mixtures for 5 h. The amorphous powders were found to exhibit a wide supercooled liquid region of 88 K before crystallization. Bulk metallic glasses were prepared successfully by consolidating the as-milled Ni57Zr20Ti20Si3 amorphous powders using vacuum hot pressing in the supercooled liquid region. Vickers microhardnesses of the as-pressed samples are in the range of 788-830 kg/mm2.

AB - In the current study, we investigated the feasibility of fabricating amorphous Ni57Zr20Ti20Si3 powders by mechanical alloying, and consolidating them into bulk metallic glasses by a vacuum hot pressing technique. The as-milled and hot-pressed samples were examined by X-ray diffraction, scanning electron microscope, and differential thermal analysis. According to the results, amorphous Ni57Zr20Ti20Si3 powders were prepared after milling elemental powder mixtures for 5 h. The amorphous powders were found to exhibit a wide supercooled liquid region of 88 K before crystallization. Bulk metallic glasses were prepared successfully by consolidating the as-milled Ni57Zr20Ti20Si3 amorphous powders using vacuum hot pressing in the supercooled liquid region. Vickers microhardnesses of the as-pressed samples are in the range of 788-830 kg/mm2.

KW - C. Mechanical alloying and milling

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SN - 0966-9795

VL - 10

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JO - Intermetallics

JF - Intermetallics

IS - 11-12

ER -

Consolidation of amorphous Ni-Zr-Ti-Si powders by vacuum hot-pressing method

Abstract

Keywords

ASJC Scopus subject areas

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