Where Does the Lithium Go? – A Study of the Precipitates in the Stir Zone of a Friction Stir Weld in a Li-containing 2xxx Series Al Alloy

Rao, J.; Payton, E.J.; Somsen, C.; Neuking, K.; Eggeler, G.; Kostka, A.; dos Santos, J.F.

Journalpaper

Where Does the Lithium Go? – A Study of the Precipitates in the Stir Zone of a Friction Stir Weld in a Li-containing 2xxx Series Al Alloy

Abstract

The main strengthening precipitates of aluminum alloy 2198-T8, which are of the T1 phase, dissolve during friction stir welding, sending many Li atoms into solid solution. The stir zone precipitates are characterized using high-resolution transmission electron microscopy, energy dispersive spectroscopy, and selected area diffraction techniques to begin answering questions about the microstructural evolution and the relationship between microstructure and mechanical properties in friction stir welding of the next generation of lightweight Li-containing Al alloys.

DOI Link to Publication

URL: https://publications.hereon.de/id/28765/
Authors:Rao, J., Payton, E.J., Somsen, C., Neuking, K., Eggeler, G., Kostka, A., dos Santos, J.F.
Year:2010
In: Advanced Engineering Materials
Volume:12
Issue:4
Pages:298 - 303
Publisher:Wiley, Weinheim
Type:Journalpaper
ISSN: 1438-1656
Cite as: Rao, J.; Payton, E.J.; Somsen, C.; Neuking, K.; Eggeler, G.; Kostka, A.; dos Santos, J.F.: Where Does the Lithium Go? – A Study of the Precipitates in the Stir Zone of a Friction Stir Weld in a Li-containing 2xxx Series Al Alloy. In: Advanced Engineering Materials. Vol. 12 (2010) 4, 298 - 303. (DOI: 10.1002/adem.200900284)