Extraordinary Room-Temperature Tensile Ductility of Pure Magnesium

Xinghao Du; Haitao Chang; Cai Chen; Xiaofeng Huo; Wanpeng Li; Jacob C. Huang; Guosheng Duan; Baolin Wu

doi:10.3390/ma12233813

Extraordinary Room-Temperature Tensile Ductility of Pure Magnesium

Xinghao Du^*
, Haitao Chang
, Cai Chen
, Xiaofeng Huo
, Wanpeng Li
, Jacob C. Huang^*
, Guosheng Duan
, Baolin Wu

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

1 Citation (Scopus)

70 Downloads (CityUHK Scholars)

Abstract

Room-temperature tensile behavior and associated deformation mechanisms of multiple-axial forged (MAFed) pure Mg has been investigated. The as-MAFed Mg, with a coarsely recrystallized structure, exhibited a balanced strain-hardening behavior with strain, resulting in extraordinary mechanical properties with high ultimate stress (~200 MPa) and extensive true strain (~0.30). The observation on the microstructural evolution suggests that the balanced strain-hardening behavior is correlated with de-twinning behavior cooperated with pyramidal <c + a> dislocations at the plastic straining stage.

Original language	English
Article number	3813
Journal	Materials
Volume	12
Issue number	23
Online published	20 Nov 2019
DOIs	https://doi.org/10.3390/ma12233813
Publication status	Published - Dec 2019

Research Keywords

Mechanical properties
Multiple-axial forging
Pure Mg
Pyramidal dislocations
Strain hardening

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Extraordinary Room-Temperature Tensile Ductility of Pure Magnesium",

abstract = "Room-temperature tensile behavior and associated deformation mechanisms of multiple-axial forged (MAFed) pure Mg has been investigated. The as-MAFed Mg, with a coarsely recrystallized structure, exhibited a balanced strain-hardening behavior with strain, resulting in extraordinary mechanical properties with high ultimate stress (\textasciitilde{}200 MPa) and extensive true strain (\textasciitilde{}0.30). The observation on the microstructural evolution suggests that the balanced strain-hardening behavior is correlated with de-twinning behavior cooperated with pyramidal dislocations at the plastic straining stage.",

keywords = "Mechanical properties, Multiple-axial forging, Pure Mg, Pyramidal dislocations, Strain hardening",

author = "Xinghao Du and Haitao Chang and Cai Chen and Xiaofeng Huo and Wanpeng Li and Huang, \{Jacob C.\} and Guosheng Duan and Baolin Wu",

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AU - Du, Xinghao

AU - Chang, Haitao

AU - Chen, Cai

AU - Huo, Xiaofeng

AU - Li, Wanpeng

AU - Huang, Jacob C.

AU - Duan, Guosheng

AU - Wu, Baolin

PY - 2019/12

Y1 - 2019/12

N2 - Room-temperature tensile behavior and associated deformation mechanisms of multiple-axial forged (MAFed) pure Mg has been investigated. The as-MAFed Mg, with a coarsely recrystallized structure, exhibited a balanced strain-hardening behavior with strain, resulting in extraordinary mechanical properties with high ultimate stress (~200 MPa) and extensive true strain (~0.30). The observation on the microstructural evolution suggests that the balanced strain-hardening behavior is correlated with de-twinning behavior cooperated with pyramidal dislocations at the plastic straining stage.

AB - Room-temperature tensile behavior and associated deformation mechanisms of multiple-axial forged (MAFed) pure Mg has been investigated. The as-MAFed Mg, with a coarsely recrystallized structure, exhibited a balanced strain-hardening behavior with strain, resulting in extraordinary mechanical properties with high ultimate stress (~200 MPa) and extensive true strain (~0.30). The observation on the microstructural evolution suggests that the balanced strain-hardening behavior is correlated with de-twinning behavior cooperated with pyramidal dislocations at the plastic straining stage.

KW - Mechanical properties

KW - Multiple-axial forging

KW - Pure Mg

KW - Pyramidal dislocations

KW - Strain hardening

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U2 - 10.3390/ma12233813

DO - 10.3390/ma12233813

M3 - RGC 21 - Publication in refereed journal

C2 - 31756988

SN - 1996-1944

VL - 12

JO - Materials

JF - Materials

IS - 23

M1 - 3813

ER -

Extraordinary Room-Temperature Tensile Ductility of Pure Magnesium

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Research Keywords

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