Journal
MATERIALS CHARACTERIZATION
Volume 111, Issue -, Pages 170-176Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2015.12.003
Keywords
Dendritic morphology; Growth orientation; X-ray tomography; Mg-Ca alloy; Branching structure
Categories
Funding
- National Science Foundation of China [51175292, 51404016]
- innovation platform for through process modeling and simulation of advanced materials processing technologies project [2012ZX04012-011]
- Postdoctoral Science Foundation of China [2014M550588]
Ask authors/readers for more resources
The dendritic morphology and branching structure of alpha-Mg dendrites were investigated in both columnar and equiaxed growth Mg-9 wt.%Ca alloys. Using synchrotron X-ray tomography, dendrite morphologies were observed in Mg-Ca alloys from columnar and equiaxed growth, revealing 5, 4 and 3 side arms growing around the primary trunk. The crystallographic growth directions of the main trunk and branch arms were determined, through the topological analysis of the dendritic branching structure, as well as the computed angles between them. The results clearly showed that the preferential crystallographic orientations of primary a-Mg dendrites in Mg-Ca alloy are dominated by <11<(2)over bar>0> and <22<(4)over bar>5> orientations. (C) 2015 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available