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Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys

Publication ,  Journal Article
Wang, X; Du, W; Liu, K; Wang, Z; Li, S
Published in: Journal of Alloys and Compounds
May 5, 2012

The microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys have been investigated. The results indicated that the addition of Gd led to the formation of a branched (Mg, Al) 3Gd phase and a cubic Al 2Gd phase. The tensile properties of the AZ21 alloy have been improved greatly at both room temperature and elevated temperature due to the presence of the branched (Mg, Al) 3Gd phase. The AZ21 alloy containing 4% Gd presented a good creep-resistant property. The steady-region and the total creep strain of the alloy after 100 h were 2.6 × 10 -8 s -1 and 1.2%, respectively. The enhancement of creep properties of the AZ21 alloy was mainly ascribed to the thermal stable branched (Mg, Al) 3Gd phase by which the movement of dislocations were impeded effectively. © 2012 Elsevier B.V. All rights reserved.

Duke Scholars

Published In

Journal of Alloys and Compounds

DOI

ISSN

0925-8388

Publication Date

May 5, 2012

Volume

522

Start / End Page

78 / 84

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics
 

Citation

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Wang, X., Du, W., Liu, K., Wang, Z., & Li, S. (2012). Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys. Journal of Alloys and Compounds, 522, 78–84. https://doi.org/10.1016/j.jallcom.2012.01.084
Wang, X., W. Du, K. Liu, Z. Wang, and S. Li. “Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys.” Journal of Alloys and Compounds 522 (May 5, 2012): 78–84. https://doi.org/10.1016/j.jallcom.2012.01.084.
Wang X, Du W, Liu K, Wang Z, Li S. Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys. Journal of Alloys and Compounds. 2012 May 5;522:78–84.
Wang, X., et al. “Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys.” Journal of Alloys and Compounds, vol. 522, May 2012, pp. 78–84. Scopus, doi:10.1016/j.jallcom.2012.01.084.
Wang X, Du W, Liu K, Wang Z, Li S. Microstructure, tensile properties and creep behaviors of as-cast Mg-2Al-1Zn-xGd (x = 1, 2, 3, and 4 wt.%) alloys. Journal of Alloys and Compounds. 2012 May 5;522:78–84.
Journal cover image

Published In

Journal of Alloys and Compounds

DOI

ISSN

0925-8388

Publication Date

May 5, 2012

Volume

522

Start / End Page

78 / 84

Related Subject Headings

  • Materials
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics