Ti-Based Bulk Metallic Glasses with High Specific Strength

Jin Man Park; Yu Chan Kim; Won Tae Kim; Do Hyang Kim

doi:10.2320/matertrans.45.595

Ti-Based Bulk Metallic Glasses with High Specific Strength

Jin Man Park, Yu Chan Kim, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

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

61 Citations (Scopus)

Abstract

The glass forming ability of melt-spun Ti_65-xZr _xBe₁₈ujNis (x = 0, 5, 10, 15) amorphous alloys have been investigated by differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). With increasing Zr contents, x from 0 to 15, ΔT_x (= T_x - T_g), T_rg (= T_g/T_l) and γ (= T_x/(T_g + T_l)), where T _g = glass transition temperature, T_x = crystallization temperature and T_l = liquidus temperature, gradually increase from 35 to 40 K, from 0.558 to 0.621, and from 0.378 to 0.406, respectively. The Ti_65-x-Zr_xBe₁₈Cu₉Ni₈ (x = 10, 15) BMG cylinders with the diameter up to 6 mm are successfully fabricated by the injection casting method, exhibiting high Vickers hardness (681-700) and yield strength (2.0-2.1 GPa). Ti-Zr-Be-Cu-Ni alloys with >50at% Ti content have higher specific strength than any other Ti-based BMGs reported so far.

Original language	English
Pages (from-to)	595-598
Number of pages	4
Journal	Materials Transactions
Volume	45
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.45.595
Publication status	Published - 2004 Feb

All Science Journal Classification (ASJC) codes

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

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title = "Ti-Based Bulk Metallic Glasses with High Specific Strength",

abstract = "The glass forming ability of melt-spun Ti65-xZr xBe18ujNis (x = 0, 5, 10, 15) amorphous alloys have been investigated by differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). With increasing Zr contents, x from 0 to 15, ΔTx (= Tx - Tg), Trg (= Tg/Tl) and γ (= Tx/(Tg + Tl)), where T g = glass transition temperature, Tx = crystallization temperature and Tl = liquidus temperature, gradually increase from 35 to 40 K, from 0.558 to 0.621, and from 0.378 to 0.406, respectively. The Ti65-x-ZrxBe18Cu9Ni8 (x = 10, 15) BMG cylinders with the diameter up to 6 mm are successfully fabricated by the injection casting method, exhibiting high Vickers hardness (681-700) and yield strength (2.0-2.1 GPa). Ti-Zr-Be-Cu-Ni alloys with >50at% Ti content have higher specific strength than any other Ti-based BMGs reported so far.",

author = "Park, {Jin Man} and Kim, {Yu Chan} and Kim, {Won Tae} and Kim, {Do Hyang}",

year = "2004",

month = feb,

doi = "10.2320/matertrans.45.595",

language = "English",

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AU - Kim, Yu Chan

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N2 - The glass forming ability of melt-spun Ti65-xZr xBe18ujNis (x = 0, 5, 10, 15) amorphous alloys have been investigated by differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). With increasing Zr contents, x from 0 to 15, ΔTx (= Tx - Tg), Trg (= Tg/Tl) and γ (= Tx/(Tg + Tl)), where T g = glass transition temperature, Tx = crystallization temperature and Tl = liquidus temperature, gradually increase from 35 to 40 K, from 0.558 to 0.621, and from 0.378 to 0.406, respectively. The Ti65-x-ZrxBe18Cu9Ni8 (x = 10, 15) BMG cylinders with the diameter up to 6 mm are successfully fabricated by the injection casting method, exhibiting high Vickers hardness (681-700) and yield strength (2.0-2.1 GPa). Ti-Zr-Be-Cu-Ni alloys with >50at% Ti content have higher specific strength than any other Ti-based BMGs reported so far.

AB - The glass forming ability of melt-spun Ti65-xZr xBe18ujNis (x = 0, 5, 10, 15) amorphous alloys have been investigated by differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). With increasing Zr contents, x from 0 to 15, ΔTx (= Tx - Tg), Trg (= Tg/Tl) and γ (= Tx/(Tg + Tl)), where T g = glass transition temperature, Tx = crystallization temperature and Tl = liquidus temperature, gradually increase from 35 to 40 K, from 0.558 to 0.621, and from 0.378 to 0.406, respectively. The Ti65-x-ZrxBe18Cu9Ni8 (x = 10, 15) BMG cylinders with the diameter up to 6 mm are successfully fabricated by the injection casting method, exhibiting high Vickers hardness (681-700) and yield strength (2.0-2.1 GPa). Ti-Zr-Be-Cu-Ni alloys with >50at% Ti content have higher specific strength than any other Ti-based BMGs reported so far.

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Ti-Based Bulk Metallic Glasses with High Specific Strength

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