| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
The Influence of Heat Treatments on the Microstructure and Tensile Properties of Additively Manufactured Inconel 939 |
| Author(s) |
Rukesh Gusain, Mohammad Soleimani Dodaran, Paul R. Gradl, Shuai Shao, Nima Shamsaei |
| On-Site Speaker (Planned) |
Rukesh Gusain |
| Abstract Scope |
The variations in microstructure and tensile behavior of laser powder bed fusion Inconel 939 subjected to three different heat treatments are investigated in this study. The heat treatment schedule involves combinations of annealing temperature and soaking time, followed by multi-stage aging. The subsequent microstructural changes were analyzed using scanning electron microscopy. Tensile tests were performed at room temperature to examine the influence of the resultant microstructure on the mechanical behavior. The microstructural analysis showed that the higher solution temperatures led to the partial removal of dendritic microstructure and resulted in better homogenization, which was not so significant at the lower solution temperatures studied. Moreover, variations in the distribution of precipitates with aging temperature were also observed in this study. The optimal heat treatment schedule, which yielded a superior combination of strength and ductility, was identified in this study. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |