|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloy Development and Powder Manufacture for Additive Manufacturing
||Additive Manufacturing of a Quasicrystalline Phase Former Al-based Alloy Obtained Using Recycled Material
||Piter Gargarella, Leandro Michelotti, ClŠudio S Kiminami, Edson Costa Santos
|On-Site Speaker (Planned)
Quasicrystalline phase (QC) former Al-based alloys exhibit high strength and wear resistance, especially at high temperatures, and are promising to be used as polymer extrusion dies. Nevertheless, the QC is only formed under high cooling rates (>10^3 K/s), which restrict sample size to powders and ribbons and consolidation methods may be necessary. Polymer extrusion dies usually show complex geometry with complicated machining process and limited design possibilities. An alternative method to fabricate these dies is Selective Laser Melting (SLM). It allows producing parts with complex geometry, internal cooling channels and may impose high cooling rates during solidification (up to 10^5K/s). The aim of this work was to produce bulk samples of the Al91Fe4Cr3Ti2 alloy containing QC by using recycled material (Al cans) and SLM. Powders were produced by gas atomization and were consolidated by SLM. The correlation between microstructure, phase formation, mechanical properties and processing parameters will be discussed.
||Planned: Supplemental Proceedings volume