Effect of element composition on microstructure pattern of Mg-RE alloys
- 10.2991/icadme-15.2015.75How to use a DOI?
- Mg-RE alloys, element composition, microstructure pattern
The microstructure of as cast Mg-RE (Mg-Gd, Mg-Y, Mg-Gd-Y and Mg-Gd-Y-Nd) alloys and that after heat treatment were investigated. The results show that the primary solidified precipitated phases of both Mg-Gd and Mg-Y binary alloy were coarse aberration eutectic microstructure pattern. For Mg-Gd-Y ternary alloy, a small amount of lamellar eutectic microstructure was formed while that mainly was coarse coefficient eutectic microstructure in matrix. In Mg-Gd-Y-Nd quaternary alloy, the as-cast microstructure was composed of -Mg matrix and -Mg+Mg5 (Gd, Y, Nd) phase which had lamellar structure on grain boundaries. Compared with Mg-Gd, Mg-Y, Mg-Gd-Y alloy, the remaining second phase particles in Mg-Gd-Y-Nd alloy was more dispersed after heat treatment.
- © 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 - Yongjun Li AU - Xinggang Li AU - Minglong Ma AU - Guoliang Shi PY - 2015/10 DA - 2015/10 TI - Effect of element composition on microstructure pattern of Mg-RE alloys BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 375 EP - 378 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.75 DO - 10.2991/icadme-15.2015.75 ID - Li2015/10 ER -