Dynamic precipitation during multi-axial forging of an Mg–7Gd–5Y–1Nd–0.5Zr alloy

The dynamic precipitation behavior during multi-axial forging in an Mg–7Gd–5Y–1Nd–0.5Zr alloy has been investigated and compared with that in static precipitation treatment. The results indicated that dynamic precipitation does occur during multi-axial forging. The dynamic precipitate can be deduced...

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Bibliographic Details
Published in:Journal of magnesium and alloys 2013-03, Vol.1 (1), p.47-53
Main Authors: Li, Ting, Zhang, Kui, Li, Xinggang, Du, Zhiwei, Li, Yongjun, Ma, Minglong, Shi, Guoliang
Format: Article
Language:English
Subjects:
Dynamic precipitation
Magnesium alloy
Multi-axial forging
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Summary:The dynamic precipitation behavior during multi-axial forging in an Mg–7Gd–5Y–1Nd–0.5Zr alloy has been investigated and compared with that in static precipitation treatment. The results indicated that dynamic precipitation does occur during multi-axial forging. The dynamic precipitate can be deduced as β phase with face-centered cubic crystal structure (a = 2.22 nm). Most of the β precipitates locate at the dynamic recrystallization grain boundaries. The morphology and orientation relationship is different from that of the β phase formed in the static precipitation treated alloys, although the crystal structure is the same. The precipitation temperature of β phase during MAF is higher than that in the static precipitation treatment.
ISSN:2213-9567
2213-9567
DOI:10.1016/j.jma.2013.02.005