About this Abstract |
Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Presentation Title |
Effect of Heat Treatment on High-cycle Fatigue of Additively Manufactured 17% Chromium 4% Nickel Precipitation Hardened Stainless Steel |
Author(s) |
Julianna Posey |
On-Site Speaker (Planned) |
Julianna Posey |
Abstract Scope |
Precipitation hardenable stainless steels have been identified for applications that require increased corrosion resistance and high strength capabilities. Alloyed 17% Chromium - 4% Nickel (17-4 PH) rectangular block structures were manufactured using an EOS M290 powder bed fusion AM system. Fatigue specimens are selectively harvested in horizontal- and vertical-to-build-direction orientations. Typically, this alloy undergoes a standard solutionizing and annealing heat treatment prior to industrial implementation. In this case, the melt pool and grain boundary interactions through lower-than-standard temperature heat treatments are documented. Resulting fatigue behavior in the high-cycle regime is examined. Microstructural characteristics in heat-treated AM steel are explored from the lens of fatigue behavior prediction and the unique fracture mechanics inherent in AM components. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |