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The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy

Publication ,  Journal Article
Liu, K; Du, W; Li, S; Wang, Z
Published in: Journal of Magnesium and Alloys
June 1, 2016

The microstructure evolution of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy during annealing treatment has been investigated by using X-ray diffraction (XRD), optical microscope (OM), differential scanning calorimetry (DSC) and transmission electron microscope (TEM). The results indicated that two kinds of primary grains were contained in the melt-spun alloy. One was the supersaturated magnesium matrix, and the other was the 18R-LPSO phase. The 18R-LPSO phase transformed into the 14H-LPSO phase during annealing treatment at 300 °C for 0.5 h. The new precipitate of the 14H-LPSO phase was found at 300 °C for 5 h. Lots of linear precipitates formed as well as some precipitate with quadrangular morphology in matrix at 500 °C for 0.5 h. The melt-spun alloy displayed the highest hardness of 103 NHV after annealing treatment at 300 °C for 5 h.

Duke Scholars

Published In

Journal of Magnesium and Alloys

DOI

ISSN

2213-9567

Publication Date

June 1, 2016

Volume

4

Issue

2

Start / End Page

99 / 103
 

Citation

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Liu, K., Du, W., Li, S., & Wang, Z. (2016). The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy. Journal of Magnesium and Alloys, 4(2), 99–103. https://doi.org/10.1016/j.jma.2016.04.006
Liu, K., W. Du, S. Li, and Z. Wang. “The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy.” Journal of Magnesium and Alloys 4, no. 2 (June 1, 2016): 99–103. https://doi.org/10.1016/j.jma.2016.04.006.
Liu K, Du W, Li S, Wang Z. The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy. Journal of Magnesium and Alloys. 2016 Jun 1;4(2):99–103.
Liu, K., et al. “The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy.” Journal of Magnesium and Alloys, vol. 4, no. 2, June 2016, pp. 99–103. Scopus, doi:10.1016/j.jma.2016.04.006.
Liu K, Du W, Li S, Wang Z. The effect of heat treatment on microstructure of the melt-spun Mg-7Y-4Gd-5Zn-0.4Zr alloy. Journal of Magnesium and Alloys. 2016 Jun 1;4(2):99–103.
Journal cover image

Published In

Journal of Magnesium and Alloys

DOI

ISSN

2213-9567

Publication Date

June 1, 2016

Volume

4

Issue

2

Start / End Page

99 / 103