|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloy Development and Powder Manufacture for Additive Manufacturing
||Progress toward the Use of Elemental Powders for Additive Manufacturing of Aluminum Alloys
||Christopher Roberts, David Bourell
|On-Site Speaker (Planned)
The widespread use of metal additive manufacturing (AM) is hampered by the minimal materials selection currently available for commercial production. In stark contrast to the vast number of wrought and cast aluminum alloys in use by traditional manufacturing, only one near-eutectic alloy, AlSi10Mg, is widely available for use in selective laser melting (SLM). The use of elemental mixtures has shown the potential to alleviate hot tearing associated with highly off-eutectic compositions, such as AA6061, when processed through SLM, thereby greatly expanding the viable materials processing space. An overview of the progress towards developing an elemental mixture mimicking the composition of AA6061 will be presented. Metallographic analysis and electron spectroscopy have been utilized to evaluate the influence of build parameters and post processing on specimens. Challenges specific to the use of elemental powders within additive manufacturing will also be addressed.
||Planned: Supplemental Proceedings volume