He ion irradiation induced nanocrystallization in Cu50Zr45Ti5 glassy alloy

Guoqiang Xie; Lin Shao; Dmitri V. Louzguine-Luzgin; Akihisa Inoue

doi:10.1016/j.surfcoat.2011.04.002

He ion irradiation induced nanocrystallization in Cu50Zr45Ti5 glassy alloy

Guoqiang Xie^*
, Lin Shao
, Dmitri V. Louzguine-Luzgin
, Akihisa Inoue

^*Corresponding author for this work

Tohoku University
Texas A&M University

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

29 Scopus citations

Abstract

Partial nanocrystallization induced by ion irradiation can be used to improve the surface properties in metallic glasses. We investigated the crystallization behavior and the structure of the formed nanocrystalline phases in a melt-spun Cu₅₀Zr₄₅Ti₅ glassy alloy irradiated with 140keV He ions to a fluence of 1.7×10¹⁷/cm². Crystalline nanoparticles were precipitated by He ion irradiation. The nanocrystalline phases were identified as a mixture of the orthorhombic Cu₁₀Zr₇ phase, tetragonal CuZr₂ phase and monoclinic CuZr phase. Hardness enhancement was observed at a depth close to the projected range of the He ions, which was related to the formation of the crystalline nanoparticles.

Original language	English
Pages (from-to)	829-833
Number of pages	5
Journal	Surface and Coatings Technology
Volume	206
Issue number	5
DOIs	https://doi.org/10.1016/j.surfcoat.2011.04.002
State	Published - 25 Nov 2011
Externally published	Yes

Keywords

Characterization
Ion irradiation
Metallic glass
Nanocrystallization
Transmission electron microscopy

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10.1016/j.surfcoat.2011.04.002

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title = "He ion irradiation induced nanocrystallization in Cu50Zr45Ti5 glassy alloy",

abstract = "Partial nanocrystallization induced by ion irradiation can be used to improve the surface properties in metallic glasses. We investigated the crystallization behavior and the structure of the formed nanocrystalline phases in a melt-spun Cu50Zr45Ti5 glassy alloy irradiated with 140keV He ions to a fluence of 1.7×1017/cm2. Crystalline nanoparticles were precipitated by He ion irradiation. The nanocrystalline phases were identified as a mixture of the orthorhombic Cu10Zr7 phase, tetragonal CuZr2 phase and monoclinic CuZr phase. Hardness enhancement was observed at a depth close to the projected range of the He ions, which was related to the formation of the crystalline nanoparticles.",

keywords = "Characterization, Ion irradiation, Metallic glass, Nanocrystallization, Transmission electron microscopy",

author = "Guoqiang Xie and Lin Shao and Louzguine-Luzgin, \{Dmitri V.\} and Akihisa Inoue",

year = "2011",

month = nov,

day = "25",

doi = "10.1016/j.surfcoat.2011.04.002",

language = "英语",

volume = "206",

pages = "829--833",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - He ion irradiation induced nanocrystallization in Cu50Zr45Ti5 glassy alloy

AU - Xie, Guoqiang

AU - Shao, Lin

AU - Louzguine-Luzgin, Dmitri V.

AU - Inoue, Akihisa

PY - 2011/11/25

Y1 - 2011/11/25

N2 - Partial nanocrystallization induced by ion irradiation can be used to improve the surface properties in metallic glasses. We investigated the crystallization behavior and the structure of the formed nanocrystalline phases in a melt-spun Cu50Zr45Ti5 glassy alloy irradiated with 140keV He ions to a fluence of 1.7×1017/cm2. Crystalline nanoparticles were precipitated by He ion irradiation. The nanocrystalline phases were identified as a mixture of the orthorhombic Cu10Zr7 phase, tetragonal CuZr2 phase and monoclinic CuZr phase. Hardness enhancement was observed at a depth close to the projected range of the He ions, which was related to the formation of the crystalline nanoparticles.

AB - Partial nanocrystallization induced by ion irradiation can be used to improve the surface properties in metallic glasses. We investigated the crystallization behavior and the structure of the formed nanocrystalline phases in a melt-spun Cu50Zr45Ti5 glassy alloy irradiated with 140keV He ions to a fluence of 1.7×1017/cm2. Crystalline nanoparticles were precipitated by He ion irradiation. The nanocrystalline phases were identified as a mixture of the orthorhombic Cu10Zr7 phase, tetragonal CuZr2 phase and monoclinic CuZr phase. Hardness enhancement was observed at a depth close to the projected range of the He ions, which was related to the formation of the crystalline nanoparticles.

KW - Characterization

KW - Ion irradiation

KW - Metallic glass

KW - Nanocrystallization

KW - Transmission electron microscopy

UR - https://www.scopus.com/pages/publications/80055112563

U2 - 10.1016/j.surfcoat.2011.04.002

DO - 10.1016/j.surfcoat.2011.04.002

M3 - 文章

AN - SCOPUS:80055112563

SN - 0257-8972

VL - 206

SP - 829

EP - 833

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 5

ER -

He ion irradiation induced nanocrystallization in Cu50Zr45Ti5 glassy alloy

Abstract

Keywords

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