| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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| Presentation Title |
An Indentation Study of Mechanical Properties of Laser Powder-Bed-Fusion Fabricated Stainless Steels |
| Author(s) |
Yu-Keng Lin, Alberico Talignani, Raj Sanjaykumar Patel, Roger Qiu, Kelvin Xie, Jenn-Ming Yang, Yinmin (Morris) Wang |
| On-Site Speaker (Planned) |
Yu-Keng Lin |
| Abstract Scope |
Steep thermal gradient and high cooling rate of laser powder-bed-fusion processes engender highly non-equilibrium microstructures. Due to the complexity of the heating-cooling cycles, the microstructure of additively manufactured stainless steels is highly inhomogeneous. In this work, the micro/nano-indentation testing and microstructural characterizations were performed to probe the location-specific features and their correlations with the resultant mechanical properties of 316L stainless steel fabricated by laser powder-bed-fusion (L-PBF). The study revealed strong location-dependent mechanical properties and gained new insights on the variations of microstructures and mechanical properties within a part fabricated by L-PBF. We expect that these results will help improve the additive manufacturing design for future applications. The work at LLNL was performed under the auspices of the US Department of Energy under Contract No. DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |