| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1641776 | Materials Letters | 2016 | 4 Pages |
Abstract
The real time microstructure evolutions of directional solidification in Mg-Gd alloys are obtained by synchrotron X-ray radiography, and the effects of different low cooling rates under a fixed thermal gradient are studied. Different from the organic alloys, the growth direction of columnar dendrites gradually rotates to the direction of the thermal gradient as the cooling rates increase, which is attributed to the difference of undercooling. Meanwhile, the interface velocity increases but the mean dendrite spacing decreases, and the morphology varies with implication for solute segregation.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yongbiao Wang, Liming Peng, Yanzhou Ji, Xiaoxing Cheng, Nan Wang, Yan Zhao, Yanan Fu, Long-Qing Chen, Wenjiang Ding,