Structural investigations of rapidly solidified Mg-Cu-Y alloys

François O. Méar; Dmitri V. Louzguine-Luzgin; Akihisa Inoue

doi:10.1016/j.jallcom.2010.01.159

Structural investigations of rapidly solidified Mg-Cu-Y alloys

François O. Méar, Dmitri V. Louzguine-Luzgin, Akihisa Inoue

Advanced Institute for Materials Research (AIMR)

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

14 Citations (Scopus)

Abstract

This paper presents a systematic study on the structure, phase composition, strength and hardness of the rapidly solidified Mg_100-2xCu_xY_x alloys. Their structure mostly consists of relatively large dendritic grains of hcp-Mg phase and smaller grains of CuMg₂ phase. Nano-particles of CuMg₂ phase were also observed as a result of decomposition of the supersaturated Mg-solid solution. As in the Mg₉₈Cu₁Y₁ alloy studied earlier some fraction of the glassy phase was observed in the studied alloys and the volume fraction of the glassy phase increases with increase in Cu- and Y-content. Yield stress and Vickers microhardness values in general increase with increase in the solute content and reach a saturation at x = 4-5.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	496
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2010.01.159
Publication status	Published - 2010 Apr 30

Keywords

HR TEM
Microhardness
Precipitate
Rapidly solidified alloy
Transmission electron microscopy (TEM)
Yield tensile stress
hcp-Mg phase

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.01.159

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title = "Structural investigations of rapidly solidified Mg-Cu-Y alloys",

abstract = "This paper presents a systematic study on the structure, phase composition, strength and hardness of the rapidly solidified Mg100-2xCuxYx alloys. Their structure mostly consists of relatively large dendritic grains of hcp-Mg phase and smaller grains of CuMg2 phase. Nano-particles of CuMg2 phase were also observed as a result of decomposition of the supersaturated Mg-solid solution. As in the Mg98Cu1Y1 alloy studied earlier some fraction of the glassy phase was observed in the studied alloys and the volume fraction of the glassy phase increases with increase in Cu- and Y-content. Yield stress and Vickers microhardness values in general increase with increase in the solute content and reach a saturation at x = 4-5.",

keywords = "HR TEM, Microhardness, Precipitate, Rapidly solidified alloy, Transmission electron microscopy (TEM), Yield tensile stress, hcp-Mg phase",

author = "M{\'e}ar, {Fran{\c c}ois O.} and Louzguine-Luzgin, {Dmitri V.} and Akihisa Inoue",

note = "Funding Information: The work was supported by Grant-In-Aid “Priority Area on Science and Technology of Microwave-Induced, thermally Non-Equilibrium Reaction 18070001 from the Ministry of Education, Sports, Culture, Science and Technology, Japan as well as the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials , and Joining Technology .",

year = "2010",

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doi = "10.1016/j.jallcom.2010.01.159",

language = "English",

volume = "496",

pages = "149--154",

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T1 - Structural investigations of rapidly solidified Mg-Cu-Y alloys

AU - Méar, François O.

AU - Louzguine-Luzgin, Dmitri V.

AU - Inoue, Akihisa

N1 - Funding Information: The work was supported by Grant-In-Aid “Priority Area on Science and Technology of Microwave-Induced, thermally Non-Equilibrium Reaction 18070001 from the Ministry of Education, Sports, Culture, Science and Technology, Japan as well as the Research and Development Project on Advanced Metallic Glasses, Inorganic Materials , and Joining Technology .

PY - 2010/4/30

Y1 - 2010/4/30

N2 - This paper presents a systematic study on the structure, phase composition, strength and hardness of the rapidly solidified Mg100-2xCuxYx alloys. Their structure mostly consists of relatively large dendritic grains of hcp-Mg phase and smaller grains of CuMg2 phase. Nano-particles of CuMg2 phase were also observed as a result of decomposition of the supersaturated Mg-solid solution. As in the Mg98Cu1Y1 alloy studied earlier some fraction of the glassy phase was observed in the studied alloys and the volume fraction of the glassy phase increases with increase in Cu- and Y-content. Yield stress and Vickers microhardness values in general increase with increase in the solute content and reach a saturation at x = 4-5.

AB - This paper presents a systematic study on the structure, phase composition, strength and hardness of the rapidly solidified Mg100-2xCuxYx alloys. Their structure mostly consists of relatively large dendritic grains of hcp-Mg phase and smaller grains of CuMg2 phase. Nano-particles of CuMg2 phase were also observed as a result of decomposition of the supersaturated Mg-solid solution. As in the Mg98Cu1Y1 alloy studied earlier some fraction of the glassy phase was observed in the studied alloys and the volume fraction of the glassy phase increases with increase in Cu- and Y-content. Yield stress and Vickers microhardness values in general increase with increase in the solute content and reach a saturation at x = 4-5.

KW - HR TEM

KW - Microhardness

KW - Precipitate

KW - Rapidly solidified alloy

KW - Transmission electron microscopy (TEM)

KW - Yield tensile stress

KW - hcp-Mg phase

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U2 - 10.1016/j.jallcom.2010.01.159

DO - 10.1016/j.jallcom.2010.01.159

M3 - Article

AN - SCOPUS:77950867689

VL - 496

SP - 149

EP - 154

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 1-2

ER -

Structural investigations of rapidly solidified Mg-Cu-Y alloys

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Keywords

ASJC Scopus subject areas

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