| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
|
| Presentation Title |
Mechanical Microscopy of Additively-manufactured Steels Using High-speed Nanoindentation |
| Author(s) |
Jeffrey M. Wheeler, Marius Wagner, Léa Deillon, Markus Bambach, Ralph Spolenak |
| On-Site Speaker (Planned) |
Jeffrey M. Wheeler |
| Abstract Scope |
Mechanical microscopy is an emerging technique using high-speed nanoindentation to map the mechanical behavior and extract phase-level properties from complex microstructures with micron-scale lateral resolution. As such, this is an ideal method to study the mechanical behavior of additively manufactured (AM) metal microstructures and assist in the optimization of processing parameters. In this work, the microstructures of 316L stainless steel and multimaterial Cu/steel samples deposited using different AM techniques were characterized. Nanoindentation maps are observed to correlate well with bulk properties and provide insight into many microstructural features: porosity, defect phases, crystallographic orientation. Statistical analysis of the microstructural phases using Gaussian and K-means methods are compared and discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |