Ni-based bulk glassy alloys with large supercooled liquid region exceeding 90 K

Dmitri V. Louzguine-Luzgin; Takeyuki Shimada; Akihisa Inoue

doi:10.1016/j.intermet.2005.03.001

Ni-based bulk glassy alloys with large supercooled liquid region exceeding 90 K

Dmitri V. Louzguine-Luzgin, Takeyuki Shimada, Akihisa Inoue

Advanced Institute for Materials Research (AIMR)

Tohoku University

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

40 Citations (Scopus)

Abstract

The formations of glassy and supercooled liquid phases in Ni-Nb-Zr-Ti, Ni-Nb-Zr-Ti-Pt and Ni-Nb-Zr-Ti-Pt-Cu alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. It is found that the additions of Pt and Cu increase the supercooled liquid region of Ni-Nb-Zr-Ti alloy from 42 to 89 and 91 K, respectively. The increase in the supercooled liquid region is achieved mostly because T_x rises more intensively than T_g with Pt content. Quite low liquidus temperature of about 1300 K and high T_g value of about 850 K obtained for the studied alloys lead to a high T _g/T_l ratio which reaches 0.65 and favors the glass-forming ability. Nucleation and growth of Ni₄Ti₃ and Ni ₁₀(Zr,Ti)₇^ss phases takes place from the supercooled liquid in Ni₆₀Nb₁₀Zr₁₅Ti ₁₅ and Ni_52.5Nb₁₀Zr₁₅Ti ₁₅Pt_7.5 alloys.

Original language	English
Pages (from-to)	1166-1171
Number of pages	6
Journal	Intermetallics
Volume	13
Issue number	11
DOIs	https://doi.org/10.1016/j.intermet.2005.03.001
Publication status	Published - 2005 Nov

Keywords

B. Alloy design
B. Phase identification
B. Phase transformations
F. Calorimetry
F. Diffraction

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10.1016/j.intermet.2005.03.001

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title = "Ni-based bulk glassy alloys with large supercooled liquid region exceeding 90 K",

abstract = "The formations of glassy and supercooled liquid phases in Ni-Nb-Zr-Ti, Ni-Nb-Zr-Ti-Pt and Ni-Nb-Zr-Ti-Pt-Cu alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. It is found that the additions of Pt and Cu increase the supercooled liquid region of Ni-Nb-Zr-Ti alloy from 42 to 89 and 91 K, respectively. The increase in the supercooled liquid region is achieved mostly because Tx rises more intensively than Tg with Pt content. Quite low liquidus temperature of about 1300 K and high Tg value of about 850 K obtained for the studied alloys lead to a high T g/Tl ratio which reaches 0.65 and favors the glass-forming ability. Nucleation and growth of Ni4Ti3 and Ni 10(Zr,Ti)7ss phases takes place from the supercooled liquid in Ni60Nb10Zr15Ti 15 and Ni52.5Nb10Zr15Ti 15Pt7.5 alloys.",

keywords = "B. Alloy design, B. Phase identification, B. Phase transformations, F. Calorimetry, F. Diffraction",

author = "Louzguine-Luzgin, {Dmitri V.} and Takeyuki Shimada and Akihisa Inoue",

note = "Funding Information: This work was partially supported by the Grant-in-Aid of Ministry of Education, Sports, Culture, Science and Technology, Japan, Priority Area on {\textquoteleft}Materials Science on Bulk Metallic Glasses{\textquoteright} and the Grant-in-Aid (Wakate B) of Ministry of Education, Sports, Culture, Science and Technology, Japan N: 16760559.",

year = "2005",

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AU - Louzguine-Luzgin, Dmitri V.

AU - Shimada, Takeyuki

AU - Inoue, Akihisa

N1 - Funding Information: This work was partially supported by the Grant-in-Aid of Ministry of Education, Sports, Culture, Science and Technology, Japan, Priority Area on ‘Materials Science on Bulk Metallic Glasses’ and the Grant-in-Aid (Wakate B) of Ministry of Education, Sports, Culture, Science and Technology, Japan N: 16760559.

PY - 2005/11

Y1 - 2005/11

N2 - The formations of glassy and supercooled liquid phases in Ni-Nb-Zr-Ti, Ni-Nb-Zr-Ti-Pt and Ni-Nb-Zr-Ti-Pt-Cu alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. It is found that the additions of Pt and Cu increase the supercooled liquid region of Ni-Nb-Zr-Ti alloy from 42 to 89 and 91 K, respectively. The increase in the supercooled liquid region is achieved mostly because Tx rises more intensively than Tg with Pt content. Quite low liquidus temperature of about 1300 K and high Tg value of about 850 K obtained for the studied alloys lead to a high T g/Tl ratio which reaches 0.65 and favors the glass-forming ability. Nucleation and growth of Ni4Ti3 and Ni 10(Zr,Ti)7ss phases takes place from the supercooled liquid in Ni60Nb10Zr15Ti 15 and Ni52.5Nb10Zr15Ti 15Pt7.5 alloys.

AB - The formations of glassy and supercooled liquid phases in Ni-Nb-Zr-Ti, Ni-Nb-Zr-Ti-Pt and Ni-Nb-Zr-Ti-Pt-Cu alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. It is found that the additions of Pt and Cu increase the supercooled liquid region of Ni-Nb-Zr-Ti alloy from 42 to 89 and 91 K, respectively. The increase in the supercooled liquid region is achieved mostly because Tx rises more intensively than Tg with Pt content. Quite low liquidus temperature of about 1300 K and high Tg value of about 850 K obtained for the studied alloys lead to a high T g/Tl ratio which reaches 0.65 and favors the glass-forming ability. Nucleation and growth of Ni4Ti3 and Ni 10(Zr,Ti)7ss phases takes place from the supercooled liquid in Ni60Nb10Zr15Ti 15 and Ni52.5Nb10Zr15Ti 15Pt7.5 alloys.

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KW - B. Phase identification

KW - B. Phase transformations

KW - F. Calorimetry

KW - F. Diffraction

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Ni-based bulk glassy alloys with large supercooled liquid region exceeding 90 K

Abstract

Keywords

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