About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Evaluation of a Quasicrystal-Reinforced Al Alloy as a Candidate for Additive Manufacturing |
Author(s) |
Baris Yavas, Cain J. Hung, Mingxuan X. Li, S. Pamir Alpay, Mark Aindow |
On-Site Speaker (Planned) |
Baris Yavas |
Abstract Scope |
Metal additive manufacturing (MAM) has attracted intense interest for a wide variety of industrial applications. Most early studies used powder-processed versions of conventional alloys for MAM, but researchers have now started to investigate many different novel candidate alloys. One of the more material types that is under consideration for MAM is quasicrystal (QC) reinforced metal matrix composites (MMCs). In this study, we evaluated an Al-Cu-Fe-Cr alloy, which contains a dispersion of icosahedral QCs; these hard dispersoids serve as reinforcements in the FCC Al matrix giving composite strengthening. We performed laser-glazing of solid samples in a powder bed laser fusion MAM system. Single laser tracks were formed on the solid sample using a wide range of laser powers and scan speeds. Electron microscopy (SEM, FIB and TEM) studies revealed the formation of I-phase dispersoids in all of the laser tracks, indicating excellent potential for use of this alloy in MAM. |