Two phases nanocrystalline Cu-Ag-La alloy induced by crystallization of amorphous phase

J. S. Park; A. Inoue; A. P. Tsai; T. Masumoto

Two phases nanocrystalline Cu-Ag-La alloy induced by crystallization of amorphous phase

J. S. Park^*
, A. Inoue
, A. P. Tsai
, T. Masumoto

^*Corresponding author for this work

Metallurgical System Engineering

Tohoku University

Research output: Contribution to journal › Journal article › peer-review

Abstract

Crystallization has been studied in the amorphous Cu-Ag-La alloys by means of X-ray diffraction, differential scanning calorimeter and transmission electron microscopy. Amorphous Cu₅₂Ag₄₅La₃ alloy was found to crystallize two distinct stages; first and second stages are due to primary crystallization of nanocrystalline fcc-Cu and fcc-Ag phases and growth of primary crystalline. The crystallization process is the typical nucleation and growth transformation. The n-values of JMA plot are in the range of 2.5 and 3, indicating a diffusion controlled growth in the eutectiod cells. Mechanical properties; σ_f and H_v, are clearly improved by the partial crystallization of amorphous phase.

Original language	English
Pages (from-to)	179-183
Number of pages	5
Journal	Science Reports of the Rerearch Institutes Tohoku University Series A-Physics
Volume	42
Issue number	1
State	Published - 1996.03

Keywords

Amorphous alloy
Copper-silver-lanthanum system
Insoluble type alloy
Partial crystallization
Two phases nanocrystalline

Cite this

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title = "Two phases nanocrystalline Cu-Ag-La alloy induced by crystallization of amorphous phase",

abstract = "Crystallization has been studied in the amorphous Cu-Ag-La alloys by means of X-ray diffraction, differential scanning calorimeter and transmission electron microscopy. Amorphous Cu52Ag45La3 alloy was found to crystallize two distinct stages; first and second stages are due to primary crystallization of nanocrystalline fcc-Cu and fcc-Ag phases and growth of primary crystalline. The crystallization process is the typical nucleation and growth transformation. The n-values of JMA plot are in the range of 2.5 and 3, indicating a diffusion controlled growth in the eutectiod cells. Mechanical properties; σf and Hv, are clearly improved by the partial crystallization of amorphous phase.",

keywords = "Amorphous alloy, Copper-silver-lanthanum system, Insoluble type alloy, Partial crystallization, Two phases nanocrystalline",

author = "Park, \{J. S.\} and A. Inoue and Tsai, \{A. P.\} and T. Masumoto",

year = "1996",

month = mar,

language = "English",

volume = "42",

pages = "179--183",

journal = "Science Reports of the Rerearch Institutes Tohoku University Series A-Physics",

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TY - JOUR

T1 - Two phases nanocrystalline Cu-Ag-La alloy induced by crystallization of amorphous phase

AU - Park, J. S.

AU - Inoue, A.

AU - Tsai, A. P.

AU - Masumoto, T.

PY - 1996/3

Y1 - 1996/3

N2 - Crystallization has been studied in the amorphous Cu-Ag-La alloys by means of X-ray diffraction, differential scanning calorimeter and transmission electron microscopy. Amorphous Cu52Ag45La3 alloy was found to crystallize two distinct stages; first and second stages are due to primary crystallization of nanocrystalline fcc-Cu and fcc-Ag phases and growth of primary crystalline. The crystallization process is the typical nucleation and growth transformation. The n-values of JMA plot are in the range of 2.5 and 3, indicating a diffusion controlled growth in the eutectiod cells. Mechanical properties; σf and Hv, are clearly improved by the partial crystallization of amorphous phase.

AB - Crystallization has been studied in the amorphous Cu-Ag-La alloys by means of X-ray diffraction, differential scanning calorimeter and transmission electron microscopy. Amorphous Cu52Ag45La3 alloy was found to crystallize two distinct stages; first and second stages are due to primary crystallization of nanocrystalline fcc-Cu and fcc-Ag phases and growth of primary crystalline. The crystallization process is the typical nucleation and growth transformation. The n-values of JMA plot are in the range of 2.5 and 3, indicating a diffusion controlled growth in the eutectiod cells. Mechanical properties; σf and Hv, are clearly improved by the partial crystallization of amorphous phase.

KW - Amorphous alloy

KW - Copper-silver-lanthanum system

KW - Insoluble type alloy

KW - Partial crystallization

KW - Two phases nanocrystalline

UR - https://www.scopus.com/pages/publications/33748866246

M3 - Journal article

AN - SCOPUS:33748866246

SN - 0040-8808

VL - 42

SP - 179

EP - 183

JO - Science Reports of the Rerearch Institutes Tohoku University Series A-Physics

JF - Science Reports of the Rerearch Institutes Tohoku University Series A-Physics

IS - 1

ER -

Two phases nanocrystalline Cu-Ag-La alloy induced by crystallization of amorphous phase

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Keywords

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