| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Microstructure and Mechanical Properties of Diffusion-bonded Fe-Ni-Mo/Invar Bimetal Materials |
| Author(s) |
Hyeok Jae Choi, Jin Gyu Lee, Jeong Seon Yoo, Jun Hee Han, Jae Yeol Jeon, Dae Geun Kim, Jin Kyu Lee |
| On-Site Speaker (Planned) |
Hyeok Jae Choi |
| Abstract Scope |
Bimetallic materials are comprised of two or more metallic components with distinct thermal expansion coefficients, resulting in their curvature when exposed to temperature variations. This unique property has led to the widespread utilization of bimetal strips in diverse equipment such as thermometers, circuit breakers, and domestic applications for similar purposes.
In this study, we present an investigation into the microstructure and mechanical properties of Fe-Ni-Mo/Invar bimetal materials after undergoing rolling and diffusion bonding processes. Specifically, we examine the microstructure and composition distribution of the Fe-Ni-Mo/Invar bimetallic strips treated with diffusion annealing at different temperatures and times. Through the obtained results, we propose optimal conditions for diffusion bonding and recommend the most suitable bimetal structure. The microstructure and phase analyses of the bonding interface are performed by X-ray diffractometry, scanning electron microscopy, and electron backscatter diffraction. The mechanical properties were performed by measuring Vickers hardness and deflection properties at elevated temperatures. |
| Proceedings Inclusion? |
Planned: |