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Solute-second phase interaction for Mg, Ag and Zn in Al–Li alloys.
- Source :
-
Philosophical Magazine . Jun2020, Vol. 100 Issue 12, p1539-1549. 11p. - Publication Year :
- 2020
-
Abstract
- Early experiments have shown the promises of alloying with Mg + Ag (or Mg + Zn) on the performance of Al–Li alloys. To better understand the interaction between solutes and second phases in Al–Li alloys, Mg, Ag and Zn segregation to Al/δ′ interface as well as their substitution in δ′ bulk were investigated at the atomic level using first principles modelling and calculations. Energetics results and local charge analyses revealed that Mg, Ag and Zn can segregate to Al/δ′ interface by different preference, but have no significant influence on the interface adhesion. Ag and Zn can also dissolve into δ′ bulk, and enhance the local metallic bonding with nearest-neighboring Al atoms. Based on these results, a multi-fold benefit mechanism was suggested for the combined alloying with Mg + Ag (or Mg + Zn) in Al–Li alloys. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ALUMINUM-lithium alloys
*METALLIC bonds
Subjects
Details
- Language :
- English
- ISSN :
- 14786435
- Volume :
- 100
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Philosophical Magazine
- Publication Type :
- Academic Journal
- Accession number :
- 143591109
- Full Text :
- https://doi.org/10.1080/14786435.2020.1725249