| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Equipment, Instrumentation and In-Situ Process Monitoring
|
| Presentation Title |
Functionally Graded Material Development by Leveraging Ultrasonic Grain Refinement in Additive Manufactured Nickel 718 |
| Author(s) |
Nathaniel McNees, Satish Rajaram, Mark Warchol, Brian Wisner |
| On-Site Speaker (Planned) |
Nathaniel McNees |
| Abstract Scope |
Metal Additive Manufacturing processes are increasingly attractive because of their ability to produce complex geometry and unique material properties. Often additive manufacturing relies on trial and error to achieve the optimum build parameters which can still result in significant property variation within a single build plate let alone across multiple builds. Improved build consistency and reduced grain structure is demonstrated by leveraging Ultrasonic irradiation during the build of Selectively Laser Melted (SLM) Nickel 718. Improved micro-structure and properties are shown using scanning electron microscopy and mechanical testing methods. Moreover, by varying the ultrasonic energy and the typical print parameters including laser power and scan speed, the potential for generating complex functionally graded materials is demonstrated. |