Solidification and microstructure control of Mg-rich alloys in the Mg-Zn-Y ternary system

E. S. Park, S. Yi, J. B. Ok, DongHyun Bae, W. T. Kim, Do Hyang Kim

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

Solidification microstructures of Mg rich Mg-Zn-Y alloys were studied by using optical microscopy, scanning electron microscopy and transmission electron microscopy. Pseudo eutectic reaction (Liquid → α-Mg + icosahedral phase) takes place during solidification. Alloys containing high Mg content solidifies by primary crystallization of α-Mg followed by the eutectic reaction at interdendritic region. Mg68Zn28Y4 alloy solidifies by primary crystallization of I-phase followed by the eutectic reaction into a mixture of α-Mg and I-phase. Occasionally D-phase and Mg4Zn7 phases were observed to form with orientation relationships with previously formed I-phase and D-phase, respectively. The strength of the alloys increased with increasing the volume fraction of I-phase.

Original languageEnglish
JournalMaterials Research Society Symposium - Proceedings
Volume643
Publication statusPublished - 2001 Dec 1
EventQuasicrystals - Preparations, Properties and Applications - Boston, MA, United States
Duration: 2000 Nov 272000 Nov 30

Fingerprint

Ternary systems
ternary systems
solidification
Solidification
eutectics
Eutectics
microstructure
Microstructure
Crystallization
crystallization
Optical microscopy
Volume fraction
Transmission electron microscopy
microscopy
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy
Liquids
liquids

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "Solidification microstructures of Mg rich Mg-Zn-Y alloys were studied by using optical microscopy, scanning electron microscopy and transmission electron microscopy. Pseudo eutectic reaction (Liquid → α-Mg + icosahedral phase) takes place during solidification. Alloys containing high Mg content solidifies by primary crystallization of α-Mg followed by the eutectic reaction at interdendritic region. Mg68Zn28Y4 alloy solidifies by primary crystallization of I-phase followed by the eutectic reaction into a mixture of α-Mg and I-phase. Occasionally D-phase and Mg4Zn7 phases were observed to form with orientation relationships with previously formed I-phase and D-phase, respectively. The strength of the alloys increased with increasing the volume fraction of I-phase.",
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Solidification and microstructure control of Mg-rich alloys in the Mg-Zn-Y ternary system. / Park, E. S.; Yi, S.; Ok, J. B.; Bae, DongHyun; Kim, W. T.; Kim, Do Hyang.

In: Materials Research Society Symposium - Proceedings, Vol. 643, 01.12.2001.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Solidification and microstructure control of Mg-rich alloys in the Mg-Zn-Y ternary system

AU - Park, E. S.

AU - Yi, S.

AU - Ok, J. B.

AU - Bae, DongHyun

AU - Kim, W. T.

AU - Kim, Do Hyang

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Solidification microstructures of Mg rich Mg-Zn-Y alloys were studied by using optical microscopy, scanning electron microscopy and transmission electron microscopy. Pseudo eutectic reaction (Liquid → α-Mg + icosahedral phase) takes place during solidification. Alloys containing high Mg content solidifies by primary crystallization of α-Mg followed by the eutectic reaction at interdendritic region. Mg68Zn28Y4 alloy solidifies by primary crystallization of I-phase followed by the eutectic reaction into a mixture of α-Mg and I-phase. Occasionally D-phase and Mg4Zn7 phases were observed to form with orientation relationships with previously formed I-phase and D-phase, respectively. The strength of the alloys increased with increasing the volume fraction of I-phase.

AB - Solidification microstructures of Mg rich Mg-Zn-Y alloys were studied by using optical microscopy, scanning electron microscopy and transmission electron microscopy. Pseudo eutectic reaction (Liquid → α-Mg + icosahedral phase) takes place during solidification. Alloys containing high Mg content solidifies by primary crystallization of α-Mg followed by the eutectic reaction at interdendritic region. Mg68Zn28Y4 alloy solidifies by primary crystallization of I-phase followed by the eutectic reaction into a mixture of α-Mg and I-phase. Occasionally D-phase and Mg4Zn7 phases were observed to form with orientation relationships with previously formed I-phase and D-phase, respectively. The strength of the alloys increased with increasing the volume fraction of I-phase.

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M3 - Conference article

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