| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
A-151: The Effects of LENS Process Parameters on the Behavior of 17-4 PH Stainless steel |
| Author(s) |
Ipfi Mathoho, Esther Akinlabi, Nana Arthur, Monnamme Tlotleng |
| On-Site Speaker (Planned) |
Ipfi Mathoho |
| Abstract Scope |
17-4 PH stainless steel has proven to be one of the workhorse material in industries such as aerospace, chemical and energy. The attraction of this alloy to the aforementioned industries is derived from the fact that 17-4 PH stainless steel possesses a combination of excellent mechanical properties and corrosion resistance. Manufacturing of 17-4 PH stainless steel through 3D printing will further inspire confidence to the aforementioned industries. The current study investigated the effects LENS process parameters on porosity, microstructure, and microhardnesss. The scanning speed, and powder feed rate were varied at 7.62 mm/s-12.7 mm/s and 4.70 g/min-5.98 g/min rpm respectively, while laser power was kept constant at 300 W. The optimum scanning for both 4.70 g/min and 5.98 g/min was 10. 16 mm/s and 12.7 mm/s respectively. The current study deduced that varying both scanning speed and powder feed rate had an impact on both the microstructure and microhardness
Key words: 17-4 PH stainless steel, LENS, Microhardness, Microstructure, porosity |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |