Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing

Chao Xu; Mingyi Zheng; Shiwei Xu; Kun Wu; Erde Wang; Guohua Fan; Shigeharu Kamado

doi:10.1016/j.msea.2015.07.032

Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing

Chao Xu
, Mingyi Zheng^*
, Shiwei Xu
, Kun Wu
, Erde Wang
, Guohua Fan
, Shigeharu Kamado

^*Corresponding author for this work

Harbin Institute of Technology
Nagaoka University of Technology

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

144 Scopus citations

Abstract

An ultra-high strength and high ductility Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr Mg alloy sheet was fabricated by vertical direct chill casting, extrusion, hot rolling and peak-ageing treatment. The peak-aged sheet shows tensile yield strength of 416. MPa, ultimate tensile strength of 505. MPa and superior elongation to failure of 12.8% at ambient temperature. The remarkable improvement of strength is ascribed to the fine β' phase precipitated within the grains, grains with strong basal texture and the dispersed long period stacking ordered (LPSO) phases located at the grain boundaries.

Original language	English
Pages (from-to)	137-141
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	643
DOIs	https://doi.org/10.1016/j.msea.2015.07.032
State	Published - 3 Sep 2015
Externally published	Yes

Keywords

Ageing
Hot rolling
LPSO phase
Mechanical properties
Mg-Gd-Y-Zn-Zr alloy

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10.1016/j.msea.2015.07.032

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title = "Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing",

abstract = "An ultra-high strength and high ductility Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr Mg alloy sheet was fabricated by vertical direct chill casting, extrusion, hot rolling and peak-ageing treatment. The peak-aged sheet shows tensile yield strength of 416. MPa, ultimate tensile strength of 505. MPa and superior elongation to failure of 12.8\% at ambient temperature. The remarkable improvement of strength is ascribed to the fine β' phase precipitated within the grains, grains with strong basal texture and the dispersed long period stacking ordered (LPSO) phases located at the grain boundaries.",

keywords = "Ageing, Hot rolling, LPSO phase, Mechanical properties, Mg-Gd-Y-Zn-Zr alloy",

author = "Chao Xu and Mingyi Zheng and Shiwei Xu and Kun Wu and Erde Wang and Guohua Fan and Shigeharu Kamado",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = sep,

day = "3",

doi = "10.1016/j.msea.2015.07.032",

language = "英语",

volume = "643",

pages = "137--141",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing

AU - Xu, Chao

AU - Zheng, Mingyi

AU - Xu, Shiwei

AU - Wu, Kun

AU - Wang, Erde

AU - Fan, Guohua

AU - Kamado, Shigeharu

PY - 2015/9/3

Y1 - 2015/9/3

N2 - An ultra-high strength and high ductility Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr Mg alloy sheet was fabricated by vertical direct chill casting, extrusion, hot rolling and peak-ageing treatment. The peak-aged sheet shows tensile yield strength of 416. MPa, ultimate tensile strength of 505. MPa and superior elongation to failure of 12.8% at ambient temperature. The remarkable improvement of strength is ascribed to the fine β' phase precipitated within the grains, grains with strong basal texture and the dispersed long period stacking ordered (LPSO) phases located at the grain boundaries.

AB - An ultra-high strength and high ductility Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr Mg alloy sheet was fabricated by vertical direct chill casting, extrusion, hot rolling and peak-ageing treatment. The peak-aged sheet shows tensile yield strength of 416. MPa, ultimate tensile strength of 505. MPa and superior elongation to failure of 12.8% at ambient temperature. The remarkable improvement of strength is ascribed to the fine β' phase precipitated within the grains, grains with strong basal texture and the dispersed long period stacking ordered (LPSO) phases located at the grain boundaries.

KW - Ageing

KW - Hot rolling

KW - LPSO phase

KW - Mechanical properties

KW - Mg-Gd-Y-Zn-Zr alloy

UR - https://www.scopus.com/pages/publications/84938083428

U2 - 10.1016/j.msea.2015.07.032

DO - 10.1016/j.msea.2015.07.032

M3 - 文章

AN - SCOPUS:84938083428

SN - 0921-5093

VL - 643

SP - 137

EP - 141

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing

Abstract

Keywords

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