About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond III
|
Presentation Title |
Laser Welding of CoCrFeMnNi High Entropy Alloy to Inconel 718 |
Author(s) |
Joao Pedro Oliveira |
On-Site Speaker (Planned) |
Joao Pedro Oliveira |
Abstract Scope |
Dissimilar laser welding of the CoCrFeMnNi to Inconel 718 was successfully performed. Microstructure characterization by means of electron microscopy and high energy synchrotron X-ray diffraction were used to evaluate joint. Moreover, thermodynamic simulatuion were employed to further rationalized the microstructure evolution within the welded region. Digital image correlation was used to determine how the different regions of the joints (base material, heat affected zones and fusion zone) deformed during tensile testing. High strength and ductility were obtained in the laser welded joints upon optimization of the process parameters. A correlation between process parameters, microstructure evolution and mechanical properties was established. The sound joints obtained in this work may open new potential applications for high entropy alloys in high demanding structural applications. |