Role of nanocrystals in ductile Ni-Pd-P metallic glass

Yuqiao Zeng; Dmitri V. Louzguine-Luzgin; Nobuyuki Nishiyama; Akihisa Inoue

doi:10.1016/j.jallcom.2006.09.095

Role of nanocrystals in ductile Ni-Pd-P metallic glass

Yuqiao Zeng, Dmitri V. Louzguine-Luzgin, Nobuyuki Nishiyama, Akihisa Inoue

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

6 Citations (Scopus)

Abstract

A Ni₅₀Pd₃₀P₂₀ bulk glassy alloy contains nanoscale clusters/medium-range order (MRO) zones. However, as this alloy exhibits "nucleation and growth" type transformation on heating, these nanoscale clusters are believed to have an under-critical size. The relatively large activation energy is the reason why these nanoscale clusters do not grow significantly upon deformation. A clear nucleation and growth of a Ni₂Pd₂P phase is observed near the micro-crack area. The existence of MRO zones as structural inhomogeneities and blockage of the crack-tip propagation area by the dynamically formed nanoparticles may lead to stabilization of deformation.

Original language	English
Pages (from-to)	131-134
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	441
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2006.09.095
Publication status	Published - 2007 Aug 30

Keywords

Bulk amorphous materials
Casting
Ductility
Metallic glasses
Nanocrystalline materials

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2006.09.095

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title = "Role of nanocrystals in ductile Ni-Pd-P metallic glass",

abstract = "A Ni50Pd30P20 bulk glassy alloy contains nanoscale clusters/medium-range order (MRO) zones. However, as this alloy exhibits {"}nucleation and growth{"} type transformation on heating, these nanoscale clusters are believed to have an under-critical size. The relatively large activation energy is the reason why these nanoscale clusters do not grow significantly upon deformation. A clear nucleation and growth of a Ni2Pd2P phase is observed near the micro-crack area. The existence of MRO zones as structural inhomogeneities and blockage of the crack-tip propagation area by the dynamically formed nanoparticles may lead to stabilization of deformation.",

keywords = "Bulk amorphous materials, Casting, Ductility, Metallic glasses, Nanocrystalline materials",

author = "Yuqiao Zeng and Louzguine-Luzgin, {Dmitri V.} and Nobuyuki Nishiyama and Akihisa Inoue",

note = "Funding Information: This work was supported by the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology and by research and by the New Energy and Industrial Technology Development Organization (NEDO) under “Processing Technology for MGs” through the R&D Institute of Metals and Composites for Future Industries (RIMCOF). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2007",

month = aug,

day = "30",

doi = "10.1016/j.jallcom.2006.09.095",

language = "English",

volume = "441",

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journal = "Journal of Alloys and Compounds",

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AU - Zeng, Yuqiao

AU - Louzguine-Luzgin, Dmitri V.

AU - Nishiyama, Nobuyuki

AU - Inoue, Akihisa

N1 - Funding Information: This work was supported by the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology and by research and by the New Energy and Industrial Technology Development Organization (NEDO) under “Processing Technology for MGs” through the R&D Institute of Metals and Composites for Future Industries (RIMCOF). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007/8/30

Y1 - 2007/8/30

N2 - A Ni50Pd30P20 bulk glassy alloy contains nanoscale clusters/medium-range order (MRO) zones. However, as this alloy exhibits "nucleation and growth" type transformation on heating, these nanoscale clusters are believed to have an under-critical size. The relatively large activation energy is the reason why these nanoscale clusters do not grow significantly upon deformation. A clear nucleation and growth of a Ni2Pd2P phase is observed near the micro-crack area. The existence of MRO zones as structural inhomogeneities and blockage of the crack-tip propagation area by the dynamically formed nanoparticles may lead to stabilization of deformation.

AB - A Ni50Pd30P20 bulk glassy alloy contains nanoscale clusters/medium-range order (MRO) zones. However, as this alloy exhibits "nucleation and growth" type transformation on heating, these nanoscale clusters are believed to have an under-critical size. The relatively large activation energy is the reason why these nanoscale clusters do not grow significantly upon deformation. A clear nucleation and growth of a Ni2Pd2P phase is observed near the micro-crack area. The existence of MRO zones as structural inhomogeneities and blockage of the crack-tip propagation area by the dynamically formed nanoparticles may lead to stabilization of deformation.

KW - Bulk amorphous materials

KW - Casting

KW - Ductility

KW - Metallic glasses

KW - Nanocrystalline materials

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Role of nanocrystals in ductile Ni-Pd-P metallic glass

Abstract

Keywords

ASJC Scopus subject areas

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