Enhancement of Mechanical Properties of Extruded Mg–9Al–1Zn–1MM–0.7CaO–0.3Mn Alloy Through Pre-aging Treatment

Seok Hoan Jeong; Yong Joo Kim; Kyung Ho Kong; Tae Hee Cho; Young Kyun Kim; Hyun Kyu Lim; Won Tae Kim; Do Hyang Kim

doi:10.1007/s12540-018-0027-5

Enhancement of Mechanical Properties of Extruded Mg–9Al–1Zn–1MM–0.7CaO–0.3Mn Alloy Through Pre-aging Treatment

Seok Hoan Jeong, Yong Joo Kim, Kyung Ho Kong, Tae Hee Cho, Young Kyun Kim, Hyun Kyu Lim, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

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

16 Citations (Scopus)

Abstract

The effect of pre-aging treatment before extrusion has been investigated in Mg–9.0Al–1.0Zn–1MM–0.7CaO–0.3Mn alloy. The as-cast microstructure consists of α-Mg dendrite with secondary solidification phase particles, (Mg, Al)₂Ca, β-Mg₁₇Al₁₂ and Al₁₁RE₃ at the inter-dendritic region. After extrusion, β-Mg₁₇Al₁₂ precipitates are present, but higher density and more homogeneous distribution in pre-aged alloy. In addition, μm-scale banded bulk β-Mg₁₇Al₁₂ particles are generated during extrusion. Al₁₁RE₃ particles are broken into small particles, and are aligned along the extrusion direction. (Mg, Al)₂Ca particles are only slightly elongated along the extrusion direction, providing stronger particle stimulated nucleation (PSN) effect by severe deformation during extrusion. The mechanical properties can be significantly enhanced by introducing pre-aging treatment, i.e. β-Mg₁₇Al₁₂ precipitates provide grain refining and strengthening effects and (Mg, Al)₂Ca particles provide PSN effect.

Original language	English
Pages (from-to)	391-399
Number of pages	9
Journal	Metals and Materials International
Volume	24
Issue number	2
DOIs	https://doi.org/10.1007/s12540-018-0027-5
Publication status	Published - 2018 Mar 1

Bibliographical note

Funding Information:
This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government.

Funding Information:
Acknowledgements This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government.

Publisher Copyright:
© 2018, The Korean Institute of Metals and Materials.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.1007/s12540-018-0027-5

Cite this

@article{bc0c13bd827f4cd6a2142b98694831bb,

title = "Enhancement of Mechanical Properties of Extruded Mg–9Al–1Zn–1MM–0.7CaO–0.3Mn Alloy Through Pre-aging Treatment",

abstract = "The effect of pre-aging treatment before extrusion has been investigated in Mg–9.0Al–1.0Zn–1MM–0.7CaO–0.3Mn alloy. The as-cast microstructure consists of α-Mg dendrite with secondary solidification phase particles, (Mg, Al)2Ca, β-Mg17Al12 and Al11RE3 at the inter-dendritic region. After extrusion, β-Mg17Al12 precipitates are present, but higher density and more homogeneous distribution in pre-aged alloy. In addition, μm-scale banded bulk β-Mg17Al12 particles are generated during extrusion. Al11RE3 particles are broken into small particles, and are aligned along the extrusion direction. (Mg, Al)2Ca particles are only slightly elongated along the extrusion direction, providing stronger particle stimulated nucleation (PSN) effect by severe deformation during extrusion. The mechanical properties can be significantly enhanced by introducing pre-aging treatment, i.e. β-Mg17Al12 precipitates provide grain refining and strengthening effects and (Mg, Al)2Ca particles provide PSN effect.",

author = "Jeong, {Seok Hoan} and Kim, {Yong Joo} and Kong, {Kyung Ho} and Cho, {Tae Hee} and Kim, {Young Kyun} and Lim, {Hyun Kyu} and Kim, {Won Tae} and Kim, {Do Hyang}",

note = "Funding Information: This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government. Funding Information: Acknowledgements This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government. Publisher Copyright: {\textcopyright} 2018, The Korean Institute of Metals and Materials.",

year = "2018",

month = mar,

day = "1",

doi = "10.1007/s12540-018-0027-5",

language = "English",

volume = "24",

pages = "391--399",

journal = "Metals and Materials International",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

number = "2",

}

TY - JOUR

T1 - Enhancement of Mechanical Properties of Extruded Mg–9Al–1Zn–1MM–0.7CaO–0.3Mn Alloy Through Pre-aging Treatment

AU - Jeong, Seok Hoan

AU - Kim, Yong Joo

AU - Kong, Kyung Ho

AU - Cho, Tae Hee

AU - Kim, Young Kyun

AU - Lim, Hyun Kyu

AU - Kim, Won Tae

AU - Kim, Do Hyang

N1 - Funding Information: This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government. Funding Information: Acknowledgements This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821), Korea Government. Publisher Copyright: © 2018, The Korean Institute of Metals and Materials.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - The effect of pre-aging treatment before extrusion has been investigated in Mg–9.0Al–1.0Zn–1MM–0.7CaO–0.3Mn alloy. The as-cast microstructure consists of α-Mg dendrite with secondary solidification phase particles, (Mg, Al)2Ca, β-Mg17Al12 and Al11RE3 at the inter-dendritic region. After extrusion, β-Mg17Al12 precipitates are present, but higher density and more homogeneous distribution in pre-aged alloy. In addition, μm-scale banded bulk β-Mg17Al12 particles are generated during extrusion. Al11RE3 particles are broken into small particles, and are aligned along the extrusion direction. (Mg, Al)2Ca particles are only slightly elongated along the extrusion direction, providing stronger particle stimulated nucleation (PSN) effect by severe deformation during extrusion. The mechanical properties can be significantly enhanced by introducing pre-aging treatment, i.e. β-Mg17Al12 precipitates provide grain refining and strengthening effects and (Mg, Al)2Ca particles provide PSN effect.

AB - The effect of pre-aging treatment before extrusion has been investigated in Mg–9.0Al–1.0Zn–1MM–0.7CaO–0.3Mn alloy. The as-cast microstructure consists of α-Mg dendrite with secondary solidification phase particles, (Mg, Al)2Ca, β-Mg17Al12 and Al11RE3 at the inter-dendritic region. After extrusion, β-Mg17Al12 precipitates are present, but higher density and more homogeneous distribution in pre-aged alloy. In addition, μm-scale banded bulk β-Mg17Al12 particles are generated during extrusion. Al11RE3 particles are broken into small particles, and are aligned along the extrusion direction. (Mg, Al)2Ca particles are only slightly elongated along the extrusion direction, providing stronger particle stimulated nucleation (PSN) effect by severe deformation during extrusion. The mechanical properties can be significantly enhanced by introducing pre-aging treatment, i.e. β-Mg17Al12 precipitates provide grain refining and strengthening effects and (Mg, Al)2Ca particles provide PSN effect.

UR - http://www.scopus.com/inward/record.url?scp=85042175473&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042175473&partnerID=8YFLogxK

U2 - 10.1007/s12540-018-0027-5

DO - 10.1007/s12540-018-0027-5

M3 - Article

AN - SCOPUS:85042175473

SN - 1598-9623

VL - 24

SP - 391

EP - 399

JO - Metals and Materials International

JF - Metals and Materials International

IS - 2

ER -

Enhancement of Mechanical Properties of Extruded Mg–9Al–1Zn–1MM–0.7CaO–0.3Mn Alloy Through Pre-aging Treatment

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this