Better properties for Al-Zn-Mg-Cu alloy by adding Scandium Diya Mukherjee, Himadri Roy, Balaji Chandrakanth, Nilrudra Mandal, Sudip Kumar Samanta, Manidipto Mukherjee, Enhancing properties of Al-Zn-Mg-Cu alloy through microalloying and heat treatment, Materials Chemistry and Physics, Volume 314, 2024, 128881,
ISSN 0254-0584, https://doi.org/10.1016/j.matchemphys.2024.128881.
Main points:
- Addition of 0.25 wt % Sc significantly refines the grain structure, reducing the grain size from 62 μm to 34 μm and increasing Al3Zr, Al3(Zr, Ti), and Al3(Sc, Zr) precipitate fraction.
- Sc-added alloy achieves 28 % higher strength due to fine dispersoids.
https://www.sciencedirect.com/science/article/pii/S0254058424000051
Sc-added alloy achieves 28 % higher strength due to fine dispersoids; RRA enhances elongation