Nanocrystalline Icosahedral phase formation in melt spun Ti-Zr-Ni alloys

B. S. Murty; W. T. Kim; D. H. Kim; K. Hono

doi:10.2320/matertrans.42.372

Nanocrystalline Icosahedral phase formation in melt spun Ti-Zr-Ni alloys

B. S. Murty, W. T. Kim, D. H. Kim, K. Hono

Department of Materials Science and Engineering

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

18 Citations (Scopus)

Abstract

The paper reports Icosahedral phase (i-phase) formation in the nanocrystalline state in Ti₅₅Zr₂₀Ni₂₅ and Zr₅₅Ti₂₅Ni₂₀ alloys. While nanocrystalline i-phase forms directly from the melt during melt spinning at low wheel velocity of 20 m/s, nanoquasicrystallization of amorphous phase has been observed on subsequent annealing after melt spinning at higher wheel velocities of 30 and 40 m/s. The i-phase is stable up to 873 K in Ti-rich alloy, while it transforms to crystalline phases in Zr-rich alloy below this temperature. The i-phase formed both directly from the melt and from the amorphous phase is much finer in Zr-rich alloy compared to Ti-rich alloy.

Original language	English
Pages (from-to)	372-375
Number of pages	4
Journal	Materials Transactions
Volume	42
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.42.372
Publication status	Published - 2001

All Science Journal Classification (ASJC) codes

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

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title = "Nanocrystalline Icosahedral phase formation in melt spun Ti-Zr-Ni alloys",

abstract = "The paper reports Icosahedral phase (i-phase) formation in the nanocrystalline state in Ti55Zr20Ni25 and Zr55Ti25Ni20 alloys. While nanocrystalline i-phase forms directly from the melt during melt spinning at low wheel velocity of 20 m/s, nanoquasicrystallization of amorphous phase has been observed on subsequent annealing after melt spinning at higher wheel velocities of 30 and 40 m/s. The i-phase is stable up to 873 K in Ti-rich alloy, while it transforms to crystalline phases in Zr-rich alloy below this temperature. The i-phase formed both directly from the melt and from the amorphous phase is much finer in Zr-rich alloy compared to Ti-rich alloy.",

author = "Murty, {B. S.} and Kim, {W. T.} and Kim, {D. H.} and K. Hono",

year = "2001",

doi = "10.2320/matertrans.42.372",

language = "English",

volume = "42",

pages = "372--375",

journal = "Materials Transactions",

issn = "1345-9678",

publisher = "Japan Institute of Metals (JIM)",

number = "2",

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T1 - Nanocrystalline Icosahedral phase formation in melt spun Ti-Zr-Ni alloys

AU - Murty, B. S.

AU - Kim, W. T.

AU - Kim, D. H.

AU - Hono, K.

PY - 2001

Y1 - 2001

N2 - The paper reports Icosahedral phase (i-phase) formation in the nanocrystalline state in Ti55Zr20Ni25 and Zr55Ti25Ni20 alloys. While nanocrystalline i-phase forms directly from the melt during melt spinning at low wheel velocity of 20 m/s, nanoquasicrystallization of amorphous phase has been observed on subsequent annealing after melt spinning at higher wheel velocities of 30 and 40 m/s. The i-phase is stable up to 873 K in Ti-rich alloy, while it transforms to crystalline phases in Zr-rich alloy below this temperature. The i-phase formed both directly from the melt and from the amorphous phase is much finer in Zr-rich alloy compared to Ti-rich alloy.

AB - The paper reports Icosahedral phase (i-phase) formation in the nanocrystalline state in Ti55Zr20Ni25 and Zr55Ti25Ni20 alloys. While nanocrystalline i-phase forms directly from the melt during melt spinning at low wheel velocity of 20 m/s, nanoquasicrystallization of amorphous phase has been observed on subsequent annealing after melt spinning at higher wheel velocities of 30 and 40 m/s. The i-phase is stable up to 873 K in Ti-rich alloy, while it transforms to crystalline phases in Zr-rich alloy below this temperature. The i-phase formed both directly from the melt and from the amorphous phase is much finer in Zr-rich alloy compared to Ti-rich alloy.

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DO - 10.2320/matertrans.42.372

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EP - 375

JO - Materials Transactions

JF - Materials Transactions

IS - 2

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Nanocrystalline Icosahedral phase formation in melt spun Ti-Zr-Ni alloys

Abstract

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