Preparation and characterization of dual-phase bulk metallic glasses through powder metallurgy route

Pee Yew Lee; Sung Ting Chung; Chung Kwei Lin; Wen Ta Tsai; Hong Ming Lin

doi:10.2320/matertrans.MJ200791

Preparation and characterization of dual-phase bulk metallic glasses through powder metallurgy route

Pee Yew Lee, Sung Ting Chung, Chung Kwei Lin, Wen Ta Tsai, Hong Ming Lin

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

5 Citations (Scopus)

Abstract

In the present study, amorphous Mg₄₉Y₁₅Cu ₃₆, and Ti₅₀Cu₂₈Ni₁₅Sn₇ alloy powders were synthesized separately by using a mechanical alloying technique. The dual-phase (Mg₄₉Y₁₅Cu₃₆) _100-x(Ti₅₀Cu₂₈Ni₁₅Sn₇)x (x = 0, 10, 20, 30, 40, and 50 vol%) powders were prepared by mixing the corresponding amorphous powders. The amorphous dual-phase powders were then consolidated into bulk metallic glass (BMG) discs. The amorphization status of as-prepared powders and BMG discs was confirmed by X-ray diffraction and by using a differential scanning calorimeter. The microstructure of the BMG discs showed that the Ti₅₀Cu₂₈Ni₁₅Sn₇ phase is distributed homogeneously within the Mg₄₉Y ₁₅Cu₃₆ matrix. The (Mg₄₉Y₁₅Cu ₃₆)₅₀ BMG disc exhibited a relative density of 97.2% and its Vickers microhardness was 526 ± 20kg/mm².

Original language	English
Pages (from-to)	1595-1599
Number of pages	5
Journal	Materials Transactions
Volume	48
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.MJ200791
Publication status	Published - Jul 2007
Externally published	Yes

Keywords

Bulk metallic glasses
Composite
Mechanical alloying
Vacuum hot pressing

ASJC Scopus subject areas

Materials Science(all)
Metals and Alloys

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10.2320/matertrans.MJ200791

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title = "Preparation and characterization of dual-phase bulk metallic glasses through powder metallurgy route",

abstract = "In the present study, amorphous Mg49Y15Cu 36, and Ti50Cu28Ni15Sn7 alloy powders were synthesized separately by using a mechanical alloying technique. The dual-phase (Mg49Y15Cu36) 100-x(Ti50Cu28Ni15Sn7)x (x = 0, 10, 20, 30, 40, and 50 vol%) powders were prepared by mixing the corresponding amorphous powders. The amorphous dual-phase powders were then consolidated into bulk metallic glass (BMG) discs. The amorphization status of as-prepared powders and BMG discs was confirmed by X-ray diffraction and by using a differential scanning calorimeter. The microstructure of the BMG discs showed that the Ti50Cu28Ni15Sn7 phase is distributed homogeneously within the Mg49Y 15Cu36 matrix. The (Mg49Y15Cu 36)50 BMG disc exhibited a relative density of 97.2% and its Vickers microhardness was 526 ± 20kg/mm2.",

keywords = "Bulk metallic glasses, Composite, Mechanical alloying, Vacuum hot pressing",

author = "Lee, {Pee Yew} and Chung, {Sung Ting} and Lin, {Chung Kwei} and Tsai, {Wen Ta} and Lin, {Hong Ming}",

year = "2007",

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doi = "10.2320/matertrans.MJ200791",

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AU - Lee, Pee Yew

AU - Chung, Sung Ting

AU - Lin, Chung Kwei

AU - Tsai, Wen Ta

AU - Lin, Hong Ming

PY - 2007/7

Y1 - 2007/7

N2 - In the present study, amorphous Mg49Y15Cu 36, and Ti50Cu28Ni15Sn7 alloy powders were synthesized separately by using a mechanical alloying technique. The dual-phase (Mg49Y15Cu36) 100-x(Ti50Cu28Ni15Sn7)x (x = 0, 10, 20, 30, 40, and 50 vol%) powders were prepared by mixing the corresponding amorphous powders. The amorphous dual-phase powders were then consolidated into bulk metallic glass (BMG) discs. The amorphization status of as-prepared powders and BMG discs was confirmed by X-ray diffraction and by using a differential scanning calorimeter. The microstructure of the BMG discs showed that the Ti50Cu28Ni15Sn7 phase is distributed homogeneously within the Mg49Y 15Cu36 matrix. The (Mg49Y15Cu 36)50 BMG disc exhibited a relative density of 97.2% and its Vickers microhardness was 526 ± 20kg/mm2.

AB - In the present study, amorphous Mg49Y15Cu 36, and Ti50Cu28Ni15Sn7 alloy powders were synthesized separately by using a mechanical alloying technique. The dual-phase (Mg49Y15Cu36) 100-x(Ti50Cu28Ni15Sn7)x (x = 0, 10, 20, 30, 40, and 50 vol%) powders were prepared by mixing the corresponding amorphous powders. The amorphous dual-phase powders were then consolidated into bulk metallic glass (BMG) discs. The amorphization status of as-prepared powders and BMG discs was confirmed by X-ray diffraction and by using a differential scanning calorimeter. The microstructure of the BMG discs showed that the Ti50Cu28Ni15Sn7 phase is distributed homogeneously within the Mg49Y 15Cu36 matrix. The (Mg49Y15Cu 36)50 BMG disc exhibited a relative density of 97.2% and its Vickers microhardness was 526 ± 20kg/mm2.

KW - Bulk metallic glasses

KW - Composite

KW - Mechanical alloying

KW - Vacuum hot pressing

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Preparation and characterization of dual-phase bulk metallic glasses through powder metallurgy route

Abstract

Keywords

ASJC Scopus subject areas

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