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Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions

Publication ,  Journal Article
Liu, K; Liang, JT; Du, WB; Li, SB; Wang, ZH; Yu, ZJ; Liu, JX
Published in: Rare Metals
August 1, 2021

Abstract: The magnesium alloy has a unique advantage in 3C fields due to its high specific strength and excellent electromagnetic shielding characteristic. However, it is difficult to deform homogeneously because of hexagonal close-packed structure. In the present work, the microstructure, mechanical properties and stretch formability of magnesium alloy sheets with different alloying elements were investigated. It was indicated that a trace addition of Zn or/and Er made a key role in modifying texture, activating shear bands formation and precipitating nanoscale second phases, respectively, which resulted in an obvious improvement in both stretch formability and mechanical properties. The results suggested that the Mg–0.5Zn–0.5Er alloy sheet exhibited higher tensile strength along the rolling direction, i.e., yield strength of 180 MPa and ultimate tensile strength of 201 MPa, accompanying with superior Erichsen value of 7.0 mm at room temperature. The good performances of the sheet were ascribed to weakening basal texture intensity, formation of shear bands and precipitation of nanoscale W-phase (Mg3Zn3Er2). Graphic abstract: The microstructure, mechanical properties and stretch formability of magnesium alloy sheets with different alloying elements were investigated in the present investigation. It was indicated that a trace addition of Zn or/and Er made a key role in modifying texture (Fig. 1), activating shear bands formation and precipitating nanoscale secondary phases (Fig. 2), respectively, which resulted in an obvious improvement in both stretch formability and mechanical properties (Fig. 3).[Figure not available: see fulltext.]

Duke Scholars

Published In

Rare Metals

DOI

EISSN

1867-7185

ISSN

1001-0521

Publication Date

August 1, 2021

Volume

40

Issue

8

Start / End Page

2179 / 2187

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy
 

Citation

APA
Chicago
ICMJE
MLA
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Liu, K., Liang, J. T., Du, W. B., Li, S. B., Wang, Z. H., Yu, Z. J., & Liu, J. X. (2021). Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions. Rare Metals, 40(8), 2179–2187. https://doi.org/10.1007/s12598-020-01438-w
Liu, K., J. T. Liang, W. B. Du, S. B. Li, Z. H. Wang, Z. J. Yu, and J. X. Liu. “Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions.” Rare Metals 40, no. 8 (August 1, 2021): 2179–87. https://doi.org/10.1007/s12598-020-01438-w.
Liu K, Liang JT, Du WB, Li SB, Wang ZH, Yu ZJ, et al. Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions. Rare Metals. 2021 Aug 1;40(8):2179–87.
Liu, K., et al. “Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions.” Rare Metals, vol. 40, no. 8, Aug. 2021, pp. 2179–87. Scopus, doi:10.1007/s12598-020-01438-w.
Liu K, Liang JT, Du WB, Li SB, Wang ZH, Yu ZJ, Liu JX. Microstructure, mechanical properties and stretch formability of as-rolled Mg alloys with Zn and Er additions. Rare Metals. 2021 Aug 1;40(8):2179–2187.
Journal cover image

Published In

Rare Metals

DOI

EISSN

1867-7185

ISSN

1001-0521

Publication Date

August 1, 2021

Volume

40

Issue

8

Start / End Page

2179 / 2187

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy