Research on alloying technique of yttrium on AZ91D magnesium alloy
- DOI
- 10.2991/icmse-15.2015.343How to use a DOI?
- Keywords
- Magnesium alloy; rare earth; die casting; alloying technique.
- Abstract
Effect of alloying techniques of dollop-like yttrium, as-cast and extruded Mg-Y master alloy in AZ91D magnesium alloy on microstructure and the efficiency of alloying was studied by optical microscopy, scanning electron microscopy, XRD and inductively-coupled plasma (ICP) spectroscopy. The as-cast AZ91D-1.2wt.%Y alloys were prepared and yttrium was added by different way at 750ÂșC . The results showed that the efficiency of alloying achieved less than 50% within 60 minutes when dollop-like yttrium was added. When yttrium was added by as-cast and extruded Mg-25wt. %Y master alloy, the efficiency of alloying was 71.3wt. % and 78.3wt. %, respectively. The efficiency of alloying was improved because the Mg-Y master alloy could melt easily down at casting temperature. The Mg-Y phases were formed in the Mg-Y master alloys. After the as-cast Mg-Y master alloy was extruded, the decrease in Mg-Y particle size and increase in the number of nucleating sizes for Mg led to the microstructure of the as-cast AZ91D-1.15wt. %Y alloy was refined.
- 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/).
Cite this article
TY - CONF AU - Yulei Xu AU - Kui Zhang PY - 2015/12 DA - 2015/12 TI - Research on alloying technique of yttrium on AZ91D magnesium alloy BT - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering PB - Atlantis Press SP - 1888 EP - 1893 SN - 2352-5401 UR - https://doi.org/10.2991/icmse-15.2015.343 DO - 10.2991/icmse-15.2015.343 ID - Xu2015/12 ER -