|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder Processing of Functional and Magnetic Materials
||Additive Manufacturing of a Composite Made of Al 5083 Matrix and Encapsulated ZnAl Particles
||Baolong Zheng, David Svetlizky, Sen Jiang, Yizhang Zhou, Lorenzo Valdevit, Noam Eliaz, Enrique J. Lavernia, Julie M. Schoenung
|On-Site Speaker (Planned)
The self-healing ability of materials allows mechanical behavior to be restored by healing cracks generated in the components. Aluminum alloy composites containing encapsulated Zn-Al particles were designed by Svetlizky and Eliaz as a metallic self-healing material. Here, we report on the additive manufacturing (AM) of Al 5083 based composites reinforced with core-shell ZnAl particles, using both directed energy deposition (DED) and powder bed fusion (PBF) modes. Different shell materials and various AM processing conditions are experimentally explored to overcome the challenge of the low evaporation temperature of Zn. The as-deposited composites are characterized by electron microscopy, X-ray diffraction and energy dispersive X-ray spectroscopy. The role of coating composition, coating thickness and particle size are also evaluated. The microstructure evolution is rationalized based on the thermal behavior during AM deposition.
||Composites, Additive Manufacturing, Aluminum