Phase transformations in the rapidly solidified Ti40Zr20Hf20Pd20 alloy

N. Chen; Kefu Yao; D. V. Louzguine-Luzgin; Shengbao Qiu; S. Ranganathan; A. Inoue

doi:10.1016/j.scriptamat.2007.06.002

Phase transformations in the rapidly solidified Ti₄₀Zr₂₀Hf₂₀Pd₂₀ alloy

N. Chen, Kefu Yao, D. V. Louzguine-Luzgin, Shengbao Qiu, S. Ranganathan, A. Inoue

Advanced Institute for Materials Research (AIMR)

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

2 Citations (Scopus)

Abstract

We report that an approximant phase was initially obtained in amorphous Ti₄₀Zr₂₀Hf₂₀Pd₂₀ alloy. In the initial stage of the devitrification process, the approximant phase transforms into an icosahedral (I) phase with a high thermal stability while the cF96 Zr₂Ni-type (space group Fd over(3, ̄) m with a = 1.25 nm and 96 atoms cell^-1) particles precipitate from the amorphous matrix. Eventually the I phase grows to several hundred nanometers when annealed at about 1000 K and then transforms into the Zr₂Ni-type phase with an endothermic reaction.

Original language	English
Pages (from-to)	631-634
Number of pages	4
Journal	Scripta Materialia
Volume	57
Issue number	7
DOIs	https://doi.org/10.1016/j.scriptamat.2007.06.002
Publication status	Published - 2007 Oct

Keywords

Annealing
Microstructure
Precipitation
Quasicrystals

ASJC Scopus subject areas

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

Access to Document

10.1016/j.scriptamat.2007.06.002

Cite this

@article{9726f14a975c42a2be5c47f8d38eb9e0,

title = "Phase transformations in the rapidly solidified Ti40Zr20Hf20Pd20 alloy",

abstract = "We report that an approximant phase was initially obtained in amorphous Ti40Zr20Hf20Pd20 alloy. In the initial stage of the devitrification process, the approximant phase transforms into an icosahedral (I) phase with a high thermal stability while the cF96 Zr2Ni-type (space group Fd over(3,{\= }) m with a = 1.25 nm and 96 atoms cell-1) particles precipitate from the amorphous matrix. Eventually the I phase grows to several hundred nanometers when annealed at about 1000 K and then transforms into the Zr2Ni-type phase with an endothermic reaction.",

keywords = "Annealing, Microstructure, Precipitation, Quasicrystals",

author = "N. Chen and Kefu Yao and Louzguine-Luzgin, {D. V.} and Shengbao Qiu and S. Ranganathan and A. Inoue",

note = "Funding Information: We acknowledge the support from The Natural Science Foundation of China (Grant Nos. 50671050 and 50430130) and the National Center for Nanoscience and Technology of China.",

year = "2007",

month = oct,

doi = "10.1016/j.scriptamat.2007.06.002",

language = "English",

volume = "57",

pages = "631--634",

journal = "Scripta Materialia",

issn = "1359-6462",

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TY - JOUR

T1 - Phase transformations in the rapidly solidified Ti40Zr20Hf20Pd20 alloy

AU - Chen, N.

AU - Yao, Kefu

AU - Louzguine-Luzgin, D. V.

AU - Qiu, Shengbao

AU - Ranganathan, S.

AU - Inoue, A.

N1 - Funding Information: We acknowledge the support from The Natural Science Foundation of China (Grant Nos. 50671050 and 50430130) and the National Center for Nanoscience and Technology of China.

PY - 2007/10

Y1 - 2007/10

N2 - We report that an approximant phase was initially obtained in amorphous Ti40Zr20Hf20Pd20 alloy. In the initial stage of the devitrification process, the approximant phase transforms into an icosahedral (I) phase with a high thermal stability while the cF96 Zr2Ni-type (space group Fd over(3, ̄) m with a = 1.25 nm and 96 atoms cell-1) particles precipitate from the amorphous matrix. Eventually the I phase grows to several hundred nanometers when annealed at about 1000 K and then transforms into the Zr2Ni-type phase with an endothermic reaction.

AB - We report that an approximant phase was initially obtained in amorphous Ti40Zr20Hf20Pd20 alloy. In the initial stage of the devitrification process, the approximant phase transforms into an icosahedral (I) phase with a high thermal stability while the cF96 Zr2Ni-type (space group Fd over(3, ̄) m with a = 1.25 nm and 96 atoms cell-1) particles precipitate from the amorphous matrix. Eventually the I phase grows to several hundred nanometers when annealed at about 1000 K and then transforms into the Zr2Ni-type phase with an endothermic reaction.

KW - Annealing

KW - Microstructure

KW - Precipitation

KW - Quasicrystals

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DO - 10.1016/j.scriptamat.2007.06.002

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JO - Scripta Materialia

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