Effects of Zn/Y ratio on microstructure and mechanical properties of Mg-Zn-Y alloys

Ju Yeon Lee; Do Hyung Kim; Hyun Kyu Lim; Do Hyang Kim

doi:10.1016/j.matlet.2005.06.052

Effects of Zn/Y ratio on microstructure and mechanical properties of Mg-Zn-Y alloys

Ju Yeon Lee, Do Hyung Kim, Hyun Kyu Lim, Do Hyang Kim

Department of Materials Science and Engineering

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

265 Citations (Scopus)

Abstract

Microstructures and mechanical properties of Mg-Zn-Y alloys containing icosahedral phase (I-phase) as a secondary solidification phase have been investigated in the composition range where the total solute content (Zn and Y) is less than 10 wt.%. The optimum Zn / Y ratio for the formation of two-phase microstructure consisting of α-Mg and I-phase is 5∼7. The strength increases with increasing total solute content (Zn and Y), i.e. with increasing volume fraction of I-phase. In particular, the alloys containing I-phase exhibit high elongation to failure, > 25%, which is ascribed to the low interfacial energy between the I-phase particle and surrounding α-Mg crystalline matrix.

Original language	English
Pages (from-to)	3801-3805
Number of pages	5
Journal	Materials Letters
Volume	59
Issue number	29-30
DOIs	https://doi.org/10.1016/j.matlet.2005.06.052
Publication status	Published - 2005 Dec

Bibliographical note

Funding Information:
This work is supported by Creative Research Initiatives of the Korean Ministry of Science and Technology, Republic of Korea.

All Science Journal Classification (ASJC) codes

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

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10.1016/j.matlet.2005.06.052

Cite this

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title = "Effects of Zn/Y ratio on microstructure and mechanical properties of Mg-Zn-Y alloys",

abstract = "Microstructures and mechanical properties of Mg-Zn-Y alloys containing icosahedral phase (I-phase) as a secondary solidification phase have been investigated in the composition range where the total solute content (Zn and Y) is less than 10 wt.%. The optimum Zn / Y ratio for the formation of two-phase microstructure consisting of α-Mg and I-phase is 5∼7. The strength increases with increasing total solute content (Zn and Y), i.e. with increasing volume fraction of I-phase. In particular, the alloys containing I-phase exhibit high elongation to failure, > 25%, which is ascribed to the low interfacial energy between the I-phase particle and surrounding α-Mg crystalline matrix.",

author = "Lee, {Ju Yeon} and Kim, {Do Hyung} and Lim, {Hyun Kyu} and Kim, {Do Hyang}",

note = "Funding Information: This work is supported by Creative Research Initiatives of the Korean Ministry of Science and Technology, Republic of Korea.",

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doi = "10.1016/j.matlet.2005.06.052",

language = "English",

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T1 - Effects of Zn/Y ratio on microstructure and mechanical properties of Mg-Zn-Y alloys

AU - Lee, Ju Yeon

AU - Kim, Do Hyung

AU - Lim, Hyun Kyu

AU - Kim, Do Hyang

N1 - Funding Information: This work is supported by Creative Research Initiatives of the Korean Ministry of Science and Technology, Republic of Korea.

PY - 2005/12

Y1 - 2005/12

N2 - Microstructures and mechanical properties of Mg-Zn-Y alloys containing icosahedral phase (I-phase) as a secondary solidification phase have been investigated in the composition range where the total solute content (Zn and Y) is less than 10 wt.%. The optimum Zn / Y ratio for the formation of two-phase microstructure consisting of α-Mg and I-phase is 5∼7. The strength increases with increasing total solute content (Zn and Y), i.e. with increasing volume fraction of I-phase. In particular, the alloys containing I-phase exhibit high elongation to failure, > 25%, which is ascribed to the low interfacial energy between the I-phase particle and surrounding α-Mg crystalline matrix.

AB - Microstructures and mechanical properties of Mg-Zn-Y alloys containing icosahedral phase (I-phase) as a secondary solidification phase have been investigated in the composition range where the total solute content (Zn and Y) is less than 10 wt.%. The optimum Zn / Y ratio for the formation of two-phase microstructure consisting of α-Mg and I-phase is 5∼7. The strength increases with increasing total solute content (Zn and Y), i.e. with increasing volume fraction of I-phase. In particular, the alloys containing I-phase exhibit high elongation to failure, > 25%, which is ascribed to the low interfacial energy between the I-phase particle and surrounding α-Mg crystalline matrix.

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JO - Materials Letters

JF - Materials Letters

IS - 29-30

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Effects of Zn/Y ratio on microstructure and mechanical properties of Mg-Zn-Y alloys

Abstract

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