About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
The Effect of Heat Treatment on the Microstructure and Tensile Properties of L-PBF Haynes 214 |
Author(s) |
Shaharyar Baig, Shuai Shao, Paul Gradl, Nima Shamsaei |
On-Site Speaker (Planned) |
Shaharyar Baig |
Abstract Scope |
The as-fabricated microstructure of Haynes 214 by laser powder bed fusion (L-PBF) is dendritic due to the high cooling rates, which is generally considered undesirable and removed via heat treatments. In this study, the effects of various heat treatments on the microstructure and tensile properties of L-PBF Haynes 214 are investigated. Test specimens are fabricated on a L-PBF system in the vertical orientation. Multi-step heat treatments are performed including stress-relief, hot isostatic pressing, solution annealing and ageing. The resultant microstructures are examined after each step using a scanning electron microscope (SEM). Room temperature tensile tests are performed for some of the conditions according to ASTM E8. Finally, the tensile fracture surfaces are examined via SEM to understand the fracture mechanisms. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |