| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
2024 Graduate Student Poster Contest
|
| Presentation Title |
SPG-2: Additive Manufacturing of Functionally Graded Materials Challenges and Solutions in Bonding Inconel 718 and Stainless Steel 316L Using LPBF |
| Author(s) |
Sara Ranjbareslamloo, Md Muhiulislam Muhit, Gabriel Awuku Dzukey, Ala Qattawi |
| On-Site Speaker (Planned) |
Sara Ranjbareslamloo |
| Abstract Scope |
IN718 and SS 316L alloys have found widespread use in diverse high-strength, corrosion-resistant applications such as energy sector components and gas turbine assemblies. Historically, fabrication of multi-material parts relied on conventional manufacturing followed by permanent or temporary joining procedures. However, additive manufacturing techniques have emerged to mitigate challenges associated with joining dissimilar materials, enabling production of functionally graded multi-material constructions with enhanced properties. The present study investigates the characteristics of functionally graded IN718/SS316L components Via LPBF. Microstructural analysis reveals a seamless transition at the interface, with no significant defects or discontinuities. The mechanical properties, evidenced by microhardness measurements and macro-indentation testing, demonstrate a gradual change across the interface, indicating a well-graded transition zone. EDS shows significant migration of atoms between IN718 and SS316L. This interdiffusion contributes to the formation of a robust bond at the interface and plays a crucial role in the mechanical performance of the graded material. |