About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Materials
|
| Presentation Title |
Mechanical, corrosion properties and its behaviors of 17-4PH stainless steels fabricated via material extrusion additive manufacturing |
| Author(s) |
Yong-Hoon Cho, So-Yeon Park, Ju Yong Kim, Jung-Yeul Yun, Kee-Ahn Lee |
| On-Site Speaker (Planned) |
Yong-Hoon Cho |
| Abstract Scope |
Metal Material Extrusion Additive Manufacturing (M-MEX) is an additive manufacturing process by extruding feedstocks composed of metal powders and polymer binder layer-by-layer. M-MEX are getting spotlighted because of its superior economic feasibility and accessibility than other metal additive manufacturing techniques. In this study, 17-4PH stainless steels were fabricated by M-MEX, and the microstructure, mechanical, and corrosion properties were investigated according to the heat treatment. Tensile test results showed that the heat treatment improves the tensile strength to 1.35 GPa, the yield strength to 1.11 GPa and the elongation to 7.8 %, which were close to ASTM standard. The corrosion test results under 3.5 wt% NaCl solution revealed that the MEX specimens exhibited corrosion resistance comparable or superior to that of the 17-4PH alloys fabricated by metal injection molding. The microstructure investigation results demonstrated that the heat treatment enhances its properties by inducing homogenization, grain refinement, and controlling precipitates. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |