Growth and morphology of β phase in an Mg–Y–Nd alloy

The β phase precipitated in an Mg–Y–Nd alloy during ageing was studied using electron microscopy. Observations were performed along the orientations paralleling to [0001] and [112̄0] zone axes of the matrix. The results showed that the platelike β phase has three variants growing along three 〈112̄0〉...

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Bibliographic Details
Published in:Materials letters 2004-09, Vol.58 (24), p.3021-3024
Main Authors: Li, Zhi Cheng, Zhang, Hong, Liu, Lu, Xu, Yong Bo
Format: Article
Language:English
Subjects:
beta precipitate phase
Electron microscopy
growth of beta phase
Growth of β phase
Mg-Y-Nd alloy
β precipitate phase
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Summary:The β phase precipitated in an Mg–Y–Nd alloy during ageing was studied using electron microscopy. Observations were performed along the orientations paralleling to [0001] and [112̄0] zone axes of the matrix. The results showed that the platelike β phase has three variants growing along three 〈112̄0〉 directions of the matrix, the β phase grew faster along 〈0001〉 α and 〈112̄0〉 α directions than along the third direction (〈11̄00〉). The morphology of the β phases was illustrated according to the analysis of the directional misfit between the β phase and the matrix.
ISSN:0167-577X
1873-4979
1873-4979
DOI:10.1016/j.matlet.2004.05.032