Bibliographic Details
| Title: |
The role of melt cooling rate on the interface between 18R and Mg matrix in Mg97Zn1Y2 alloys |
| Authors: |
Q.Q. Jin, X.H. Shao, J.M. Li, Z.Z. Peng, M. Lv, B. Zhang, Y.M. Li, X.L. Ma |
| Source: |
Journal of Magnesium and Alloys, Vol 11, Iss 8, Pp 2883-2890 (2023) |
| Publisher Information: |
KeAi Communications Co., Ltd., 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Mining engineering. Metallurgy |
| Subject Terms: |
Magnesium alloys, Long-period stacking ordered phases, Dislocations, Interface structure, Mining engineering. Metallurgy, TN1-997 |
| More Details: |
The role of melt cooling rate on the interface morphology and dislocation configuration between 18R long-period stacking ordered (LPSO) structure and Mg matrix in Mg97Zn1Y2 (at.%) alloys was investigated by atomic-scale HAADF-STEM imaging. The 18R/Mg interface is step-like both in the near-equilibrium alloy and non-equilibrium alloy. Lower cooling rate makes the step size more regular and larger. Only 54R structure can be observed at the interface in the near-equilibrium alloy, and the dislocations are highly ordered. 54R and 54R′ structure sandwiched by b1 and b2 + b3 dislocation arrays, and new dislocation configuration can be detected at the interface in the non-equilibrium alloy, but the dislocations are less ordered. 18R/Mg interface containing 54R or 54R′ in equilibrium width, parallel to the (011¯0) plane, should be most stable based on elastic calculation. The segregation of solute atoms and its strong interaction with dislocations dominate the LPSO/Mg interface via diffusion-displacive transformation. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2213-9567 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2213956721002978; https://doaj.org/toc/2213-9567 |
| DOI: |
10.1016/j.jma.2021.11.010 |
| Access URL: |
https://doaj.org/article/77cc66d075114e2a8bc472baf93b87e3 |
| Accession Number: |
edsdoj.77cc66d075114e2a8bc472baf93b87e3 |
| Database: |
Directory of Open Access Journals |
