Effect of cooling speed on microstructure of as-cast Mg-3.7Zn-0.6RE quasi-crystal alloy

DOI

10.2991/mebe-15.2015.235How to use a DOI?

Keywords

magnesium alloy; cooling speed; microstructure; quasi-crystal

Abstract

By means of optical micrograph(OM), X-ray diffraction (XRD), scanning electron micrograph(SEM) and Energy Dispersive Spectrometer(EDS) analysis, the microstructure and phase compositions of Mg-3.7Zn-0.6RE alloys with different cooling speed were studied. All alloys had dendritic structure, the grain size and dendrite spacing had inverse relationship with the cooling speed of the ingots. quasi-crystal phases and W-phase were detected in all the alloys. The solidification process of the alloy was deduced by the results of the experiments above, and the peritectic reaction which could form the quasi-crystal phase was also confirmed in the investigations of the alloys which had the lowest cooling speed.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yang Yang
AU  - Kui Zhang
AU  - Minglong Ma
PY  - 2015/04
DA  - 2015/04
TI  - Effect of cooling speed on microstructure of as-cast Mg-3.7Zn-0.6RE quasi-crystal alloy
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 1051
EP  - 1054
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.235
DO  - 10.2991/mebe-15.2015.235
ID  - Yang2015/04
ER  -