|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||The Effect of Powder Characteristics on the Properties of Powder-bed Binder-jet Printed Inconel 625 Samples
||Amir Mostafaei, Eamonn Hughes, Shannon Biery, Colleen Hilla, Markus Chmielus
|On-Site Speaker (Planned)
As additive manufacturing (AM) moves into the production field, the correlation between powder and part properties needs to be understood especially in powder-bed binder-jet printing, where powder gets melted only after the printing process. Powder shape and size distribution are determined by the powder atomization process namely water atomization, vacuum melted argon atomization, and air melted nitrogen atomization. Here, we study the effects of differently atomized Inconel 625 powders and their distinctly different properties and compare them to the properties of 3D printed samples. Printed samples were cured and then sintered in a controlled atmosphere. Samples were tested for physical and mechanical properties using X-ray diffraction, micro-computed tomography, scanning electron/optical microscopy, electron backscattered diffraction, micro-hardness and tensile strength analyses. These properties vary based on powder characteristics. Greater knowledge of the effects of powder properties on part properties will provide a better basis to qualify powder-bed binder-jet printed samples.
||Planned: A print-only volume