Microstructural evolution of indirect-extruded ZK60 alloy by adding Ce

Sung Hyuk Park; Hui Yu; Jun Ho Bae; Chang Dong Yim; Bong Sun You

doi:10.1016/j.jallcom.2012.08.025

Microstructural evolution of indirect-extruded ZK60 alloy by adding Ce

Sung Hyuk Park, Hui Yu, Jun Ho Bae, Chang Dong Yim, Bong Sun You

Korea Institute of Materials Science

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

71 Scopus citations

Abstract

The microstructural evolution of an indirect-extruded ZK60 alloy by adding 1 wt.% Ce were investigated. In the extruded condition, the ZK60 alloy shows a bimodal grain structure composed of fine recrystallized grains and coarse unrecrystallized grains, whereas the ZK60-1Ce alloy exhibits a uniformly recrystallized grain structure, resulting from the promotion of dynamic recrystallization during extrusion by particle stimulated nucleation at widely distributed Mg-Zn-Ce particles. The ZK60-1Ce alloy shows a weaker basal texture and higher compressive yield strength than those of the ZK60 alloy due to the decrease in the volume fraction of unrecrystallized grains.

Original language	English
Pages (from-to)	139-143
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	545
DOIs	https://doi.org/10.1016/j.jallcom.2012.08.025
State	Published - 25 Dec 2012

Keywords

Cerium
Dynamic recrystallization
Extrusion
Magnesium alloy
Particle stimulated nucleation

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10.1016/j.jallcom.2012.08.025

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title = "Microstructural evolution of indirect-extruded ZK60 alloy by adding Ce",

abstract = "The microstructural evolution of an indirect-extruded ZK60 alloy by adding 1 wt.% Ce were investigated. In the extruded condition, the ZK60 alloy shows a bimodal grain structure composed of fine recrystallized grains and coarse unrecrystallized grains, whereas the ZK60-1Ce alloy exhibits a uniformly recrystallized grain structure, resulting from the promotion of dynamic recrystallization during extrusion by particle stimulated nucleation at widely distributed Mg-Zn-Ce particles. The ZK60-1Ce alloy shows a weaker basal texture and higher compressive yield strength than those of the ZK60 alloy due to the decrease in the volume fraction of unrecrystallized grains.",

keywords = "Cerium, Dynamic recrystallization, Extrusion, Magnesium alloy, Particle stimulated nucleation",

author = "Park, {Sung Hyuk} and Hui Yu and Bae, {Jun Ho} and Yim, {Chang Dong} and You, {Bong Sun}",

year = "2012",

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doi = "10.1016/j.jallcom.2012.08.025",

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T1 - Microstructural evolution of indirect-extruded ZK60 alloy by adding Ce

AU - Park, Sung Hyuk

AU - Yu, Hui

AU - Bae, Jun Ho

AU - Yim, Chang Dong

AU - You, Bong Sun

PY - 2012/12/25

Y1 - 2012/12/25

N2 - The microstructural evolution of an indirect-extruded ZK60 alloy by adding 1 wt.% Ce were investigated. In the extruded condition, the ZK60 alloy shows a bimodal grain structure composed of fine recrystallized grains and coarse unrecrystallized grains, whereas the ZK60-1Ce alloy exhibits a uniformly recrystallized grain structure, resulting from the promotion of dynamic recrystallization during extrusion by particle stimulated nucleation at widely distributed Mg-Zn-Ce particles. The ZK60-1Ce alloy shows a weaker basal texture and higher compressive yield strength than those of the ZK60 alloy due to the decrease in the volume fraction of unrecrystallized grains.

AB - The microstructural evolution of an indirect-extruded ZK60 alloy by adding 1 wt.% Ce were investigated. In the extruded condition, the ZK60 alloy shows a bimodal grain structure composed of fine recrystallized grains and coarse unrecrystallized grains, whereas the ZK60-1Ce alloy exhibits a uniformly recrystallized grain structure, resulting from the promotion of dynamic recrystallization during extrusion by particle stimulated nucleation at widely distributed Mg-Zn-Ce particles. The ZK60-1Ce alloy shows a weaker basal texture and higher compressive yield strength than those of the ZK60 alloy due to the decrease in the volume fraction of unrecrystallized grains.

KW - Cerium

KW - Dynamic recrystallization

KW - Extrusion

KW - Magnesium alloy

KW - Particle stimulated nucleation

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DO - 10.1016/j.jallcom.2012.08.025

M3 - Article

AN - SCOPUS:84866055529

SN - 0925-8388

VL - 545

SP - 139

EP - 143

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Microstructural evolution of indirect-extruded ZK60 alloy by adding Ce

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Keywords

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