Optimisation of alloy composition for highly-formable magnesium sheet

Zhuoran Zeng; Mingzhe Bian; Shiwei Xu; Weineng Tang; Chris Davies; Nick Birbilis; Jianfeng Nie

doi:10.1007/s12613-021-2365-4

Optimisation of alloy composition for highly-formable magnesium sheet

Zhuoran Zeng^*, Mingzhe Bian, Shiwei Xu^*, Weineng Tang, Chris Davies, Nick Birbilis, Jianfeng Nie^*

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

The effectiveness of Ca or Gd addition on ductility and formability of Mg-Zn-Zr based dilute alloys in deep drawing has not been systematically compared previously. In this study, formable Mg-Zn-Gd-Zr and Mg-Zn-Ca-Zr sheet alloys are produced by hot rolling. These sheets have similarly weakened basal texture, but the sheet of the Mg-Zn-Gd-Zr alloys has higher ductility and formability than that of Mg-Zn-Ca-Zr alloys. The combined addition of 0.2wt% Ca and 0.4wt% Gd to the Mg-1Zn-0.5Zr (wt%) alloy leads to a Mg-1Zn-0.4Gd-0.2Ca-0.5Zr alloy that has even better ductility, and its formability during deep drawing is comparable to the benchmark Al6016 sheet. An increase in Ca content from 0.2wt% to 0.5wt% leads to decreased sheet ductility and formability, predominantly due to grain boundary embrittlement.

Original language	English
Pages (from-to)	1388-1395
Number of pages	8
Journal	International Journal of Minerals, Metallurgy and Materials
Volume	29
Issue number	7
DOIs	https://doi.org/10.1007/s12613-021-2365-4
Publication status	Published - Jul 2022

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title = "Optimisation of alloy composition for highly-formable magnesium sheet",

abstract = "The effectiveness of Ca or Gd addition on ductility and formability of Mg-Zn-Zr based dilute alloys in deep drawing has not been systematically compared previously. In this study, formable Mg-Zn-Gd-Zr and Mg-Zn-Ca-Zr sheet alloys are produced by hot rolling. These sheets have similarly weakened basal texture, but the sheet of the Mg-Zn-Gd-Zr alloys has higher ductility and formability than that of Mg-Zn-Ca-Zr alloys. The combined addition of 0.2wt% Ca and 0.4wt% Gd to the Mg-1Zn-0.5Zr (wt%) alloy leads to a Mg-1Zn-0.4Gd-0.2Ca-0.5Zr alloy that has even better ductility, and its formability during deep drawing is comparable to the benchmark Al6016 sheet. An increase in Ca content from 0.2wt% to 0.5wt% leads to decreased sheet ductility and formability, predominantly due to grain boundary embrittlement.",

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author = "Zhuoran Zeng and Mingzhe Bian and Shiwei Xu and Weineng Tang and Chris Davies and Nick Birbilis and Jianfeng Nie",

note = "Publisher Copyright: {\textcopyright} 2022, University of Science and Technology Beijing.",

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doi = "10.1007/s12613-021-2365-4",

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T1 - Optimisation of alloy composition for highly-formable magnesium sheet

AU - Zeng, Zhuoran

AU - Bian, Mingzhe

AU - Xu, Shiwei

AU - Tang, Weineng

AU - Davies, Chris

AU - Birbilis, Nick

AU - Nie, Jianfeng

PY - 2022/7

Y1 - 2022/7

N2 - The effectiveness of Ca or Gd addition on ductility and formability of Mg-Zn-Zr based dilute alloys in deep drawing has not been systematically compared previously. In this study, formable Mg-Zn-Gd-Zr and Mg-Zn-Ca-Zr sheet alloys are produced by hot rolling. These sheets have similarly weakened basal texture, but the sheet of the Mg-Zn-Gd-Zr alloys has higher ductility and formability than that of Mg-Zn-Ca-Zr alloys. The combined addition of 0.2wt% Ca and 0.4wt% Gd to the Mg-1Zn-0.5Zr (wt%) alloy leads to a Mg-1Zn-0.4Gd-0.2Ca-0.5Zr alloy that has even better ductility, and its formability during deep drawing is comparable to the benchmark Al6016 sheet. An increase in Ca content from 0.2wt% to 0.5wt% leads to decreased sheet ductility and formability, predominantly due to grain boundary embrittlement.

AB - The effectiveness of Ca or Gd addition on ductility and formability of Mg-Zn-Zr based dilute alloys in deep drawing has not been systematically compared previously. In this study, formable Mg-Zn-Gd-Zr and Mg-Zn-Ca-Zr sheet alloys are produced by hot rolling. These sheets have similarly weakened basal texture, but the sheet of the Mg-Zn-Gd-Zr alloys has higher ductility and formability than that of Mg-Zn-Ca-Zr alloys. The combined addition of 0.2wt% Ca and 0.4wt% Gd to the Mg-1Zn-0.5Zr (wt%) alloy leads to a Mg-1Zn-0.4Gd-0.2Ca-0.5Zr alloy that has even better ductility, and its formability during deep drawing is comparable to the benchmark Al6016 sheet. An increase in Ca content from 0.2wt% to 0.5wt% leads to decreased sheet ductility and formability, predominantly due to grain boundary embrittlement.

KW - formability

KW - magnesium sheet alloy

KW - microstructure

KW - solute segregation

KW - texture

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DO - 10.1007/s12613-021-2365-4

M3 - Article

SN - 1674-4799

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JO - International Journal of Minerals, Metallurgy and Materials

JF - International Journal of Minerals, Metallurgy and Materials

IS - 7

ER -

Optimisation of alloy composition for highly-formable magnesium sheet

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