About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Industry
|
| Presentation Title |
Microstructure, Texture, and Temperature-Dependent Friction–Wear Mechanisms in WAAM-Deposited Inconel 625 with a 360° Rotational Scanning Strategy |
| Author(s) |
Pritam Biswas, Anirban Changdar, Yoshit Tiwari, Vivek Singh, Manidipto Mukherjee, Nilrudra Mandal |
| On-Site Speaker (Planned) |
Pritam Biswas |
| Abstract Scope |
Wire arc additive manufacturing (WAAM) enables near-net-shape fabrication of Inconel 625 for high-temperature service, but the interplay between its build-induced microstructure and tribological performance remains unattained. In this study, Inconel 625 deposited in a 360° rotational scanning strategy was characterized through the build height and dry-sliding at 27, 300, 600, and 800°C. Electron backscatter diffraction revealed build-direction-dependent grain size and crystallographic texture, while X-ray diffraction confirmed a predominantly FCC matrix. The coefficient of friction decreased from 0.48 at room temperature to 0.34 at 800°C, while specific wear rate peaked near 600°C before declining at 800°C, indicating a transition from adhesive/abrasive wear at low temperature to oxidation-dominated wear at elevated temperature. Three-dimensional profilometry of wear tracks quantified the corresponding roughness evolution. These findings link the 360° rotational scanning-induced microstructure and texture to temperature-dependent friction and wear mechanisms, offering guidance for tribological design of WAAM Inconel 625 components in high-temperature applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |