Journal
PHILOSOPHICAL MAGAZINE
Volume 99, Issue 21, Pages 2619-2635Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786435.2019.1637032
Keywords
-
Categories
Funding
- Light Metals Educational Foundation of Japan under collaborative research based on industrial demand 'Heterogeneous Structure Control': Toward innovative development of metallic structural materials [20100114]
- Light Metal Educational Foundation of Japan
- University of Toyama
- RCN project FICAL [247598]
Ask authors/readers for more resources
High angle annular dark field scanning transmission electron microscopy has been employed to observe precipitate structures in Al-Zn-Mg and Mg-Zn alloys. precipitate structures in Al-Zn-Mg are commonly formed by MgZn2 Penrose bricks, but also frequently observed to incorporate Mg6Zn7 elongated hexagons via two different modes. Tilings of MgZn2 and Mg6Zn7 building blocks in both in Mg-Zn and in Al-Zn-Mg alloys, create overall patterns which deviate from the chemical and structural configuration of solely monoclinic Mg4Zn7 or MgZn2 unit cells. Precipitate morphologies were found to be correlated to their internal sub-unit cell arrangements, especially to Mg6Zn7 elongated hexagons. Systematic or random arrangements of Mg6Zn7 elongated hexagons inside precipitates and therefore compositional and structural patterns, were found to be strongly related to the aspect ratio of the precipitates and altering of the precipitate/matrix interfaces. [GRAPHICS]
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