Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures

Ruixiao Zheng; Tilak Bhattacharjee; Akinobu Shibata; Taisuke Sasaki; Kazuhiro Hono; Mohit Joshi; Nobuhiro Tsuji

doi:10.1016/j.scriptamat.2016.12.024

Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures

Ruixiao Zheng^*
, Tilak Bhattacharjee
, Akinobu Shibata
, Taisuke Sasaki
, Kazuhiro Hono
, Mohit Joshi
, Nobuhiro Tsuji

^*Corresponding author for this work

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

141 Scopus citations

Abstract

Fully recrystallized ultrafine grained (UFG) Mg-Zn-Zr-Ca alloy was successfully fabricated by a process including high pressure torsion (HPT) and subsequent rapid annealing treatment. After the HPT by one rotation, a nanocrystalline (NC) structure with an average grain size of about 100 nm and deformed characteristics was obtained. After subsequent annealing at 300 °C and 400 °C for 1 min, fully recrystallized UFG structures with average grain sizes of 0.77 μm and 0.98 μm were obtained, respectively. Room temperature tensile test revealed that the UFG Mg alloy exhibited simultaneously enhanced strength and ductility compared with those of the coarse grained counterpart.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Scripta Materialia
Volume	131
DOIs	https://doi.org/10.1016/j.scriptamat.2016.12.024
State	Published - 1 Apr 2017
Externally published	Yes

Keywords

Ductility
High pressure torsion
Magnesium alloy
Strength
Ultrafine grain

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10.1016/j.scriptamat.2016.12.024

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title = "Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures",

abstract = "Fully recrystallized ultrafine grained (UFG) Mg-Zn-Zr-Ca alloy was successfully fabricated by a process including high pressure torsion (HPT) and subsequent rapid annealing treatment. After the HPT by one rotation, a nanocrystalline (NC) structure with an average grain size of about 100 nm and deformed characteristics was obtained. After subsequent annealing at 300 °C and 400 °C for 1 min, fully recrystallized UFG structures with average grain sizes of 0.77 μm and 0.98 μm were obtained, respectively. Room temperature tensile test revealed that the UFG Mg alloy exhibited simultaneously enhanced strength and ductility compared with those of the coarse grained counterpart.",

keywords = "Ductility, High pressure torsion, Magnesium alloy, Strength, Ultrafine grain",

author = "Ruixiao Zheng and Tilak Bhattacharjee and Akinobu Shibata and Taisuke Sasaki and Kazuhiro Hono and Mohit Joshi and Nobuhiro Tsuji",

note = "Publisher Copyright: {\textcopyright} 2016 Acta Materialia Inc.",

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doi = "10.1016/j.scriptamat.2016.12.024",

language = "英语",

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TY - JOUR

T1 - Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures

AU - Zheng, Ruixiao

AU - Bhattacharjee, Tilak

AU - Shibata, Akinobu

AU - Sasaki, Taisuke

AU - Hono, Kazuhiro

AU - Joshi, Mohit

AU - Tsuji, Nobuhiro

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Fully recrystallized ultrafine grained (UFG) Mg-Zn-Zr-Ca alloy was successfully fabricated by a process including high pressure torsion (HPT) and subsequent rapid annealing treatment. After the HPT by one rotation, a nanocrystalline (NC) structure with an average grain size of about 100 nm and deformed characteristics was obtained. After subsequent annealing at 300 °C and 400 °C for 1 min, fully recrystallized UFG structures with average grain sizes of 0.77 μm and 0.98 μm were obtained, respectively. Room temperature tensile test revealed that the UFG Mg alloy exhibited simultaneously enhanced strength and ductility compared with those of the coarse grained counterpart.

AB - Fully recrystallized ultrafine grained (UFG) Mg-Zn-Zr-Ca alloy was successfully fabricated by a process including high pressure torsion (HPT) and subsequent rapid annealing treatment. After the HPT by one rotation, a nanocrystalline (NC) structure with an average grain size of about 100 nm and deformed characteristics was obtained. After subsequent annealing at 300 °C and 400 °C for 1 min, fully recrystallized UFG structures with average grain sizes of 0.77 μm and 0.98 μm were obtained, respectively. Room temperature tensile test revealed that the UFG Mg alloy exhibited simultaneously enhanced strength and ductility compared with those of the coarse grained counterpart.

KW - Ductility

KW - High pressure torsion

KW - Magnesium alloy

KW - Strength

KW - Ultrafine grain

UR - https://www.scopus.com/pages/publications/85007173647

U2 - 10.1016/j.scriptamat.2016.12.024

DO - 10.1016/j.scriptamat.2016.12.024

M3 - 文章

AN - SCOPUS:85007173647

SN - 1359-6462

VL - 131

SP - 1

EP - 5

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures

Abstract

Keywords

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