About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
Presentation Title |
Heat treatment optimisation of 3D printed 316L for manufacturing of impellers |
Author(s) |
Nana Kwamina Kum Arthur, Molebogeng Moumakwe |
On-Site Speaker (Planned) |
Nana Kwamina Kum Arthur |
Abstract Scope |
The rapid heating and cooling cycles inherent to laser additive manufacturing result in the accumulation of high residual stress magnitudes that have an adverse effect on the material's mechanical properties. Post processing heat-treatment is applied to mitigate the problems associated with residual stress build-up and heterogeneous microstructure that results from localized heating and rapid solidification. This study investigates the effect of post processing heat treatment of 3D printed 316L stainless steel impellers to customize the treatment for optimal microstructure and mechanical performance. Initial investigations suggest the need for stress relief at 650 °C after printing, prior to solution annealing and aging. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Iron and Steel, Characterization |