|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Application of Solidification Fundamentals to Challenges in Metal Additive Manufacturing
||Development of an In-situ TEM with Laser Sintering Capabilities at Sandia National Laboratories
||Patrick Price, Adam Cook, LaRico Treadwell, Khalid Hattar
|On-Site Speaker (Planned)
A fundamental understanding of the processing-microstructure-property relationship is needed to optimize the performance and repeatability of additively manufactured systems. The development of predictive models based on fundamental solidification theories have advanced our understanding of additive manufacturing processing parameters on microstructural evolution. In order to validate and refine these models with nanometer resolution, we have developed a transmission electron microscope (TEM) with in-situ laser heating, sintering, and ablation capabilities at Sandia National Laboratories. The 1064 nm infrared laser is capable of directly heating TEM specimens during in-situ experiments, enabling real time observation of sintering behavior. The versatility of this system, combined with the in-situ capability of the I3TEM, will allow for the investigation of a wide range of processing parameters including: power, time, temperature, initial particle size, morphology, and composition. Preliminary results of particle sintering and grain growth behavior will be presented and compared to the current literature and evolving models.
||Planned: Supplemental Proceedings volume