Journal
MATERIALS LETTERS
Volume 235, Issue -, Pages 71-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.09.162
Keywords
Interfaces; Microstructure; LPSO phase; Mg-RE alloy; HAADF-TEM; GPA
Funding
- National Key Research and Development Plan [2016YFB0701201]
Ask authors/readers for more resources
This paper reports on an atomic-scale investigation into the new rare earth element enriched clusters on the interface of long period stacking ordered (LPSO) structure and magnesium matrix in Mg-2Gd-1Y-1Ni alloy, using Cs-corrected high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM). Corresponding strain mapping on the cluster was generated by GPA. Excess free volume on the interface and induced strain were applied to explain the existence of tilted arranged, periodic present clusters at the interface. The clusters, which were Gd and Ni enriched based on the EDS measurement, were periodically arranged based on the stacking sequence of LPSO structure. The strong strain field and the interaction of dislocation dipoles contributed to the tilted atomic arrangement within the cluster. (C) 2018 Elsevier B.V. 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