About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|
| Presentation Title |
Mechanical Strength of Interfacial Bonds of Multi Material FGMs Using Laser Powder Bed Fusion |
| Author(s) |
Gabriel Awuku , Sara Ranjbareslamloo, Md. Muhiul Muhit, Ala Qattawi |
| On-Site Speaker (Planned) |
Gabriel Awuku |
| Abstract Scope |
Functionally Graded Materials (FGMs) offer unique advantages in tailoring mechanical and thermal properties across components subjected to severe environments. This study addresses the integrity and mechanical strength of the interfacial bond of Tungsten-Inconel and Tungsten-Stainless Steel FGMs fabricated by Laser Powder Bed Fusion (LPBF). These systems are of particular interest since they have numerous applications in aerospace, nuclear, and high-temperature applications, where thermal resistance as well as mechanical reliability are of concern. A series of experimental tests were performed to quantify the quality and strength of interfacial zones, i.e., tensile testing, three-point bending, and evaluation of the coefficient of thermal expansion (CTE). Environmental robustness was further assessed using oxidation and corrosion tests. Findings will provide valuable information on LPBF-built multi-material FGM performance and inform process optimization methods to enhance interfacial bonding strength and general material reliability. |