| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Powder Metallurgy Processing of a Highly Wear Resistant Nanostructured Bainitic Steel |
| Author(s) |
Rangasayee Kannan, Yiyu Wang, Tomas Grejtak, Bryan Lim, Peeyush Nandwana |
| On-Site Speaker (Planned) |
Rangasayee Kannan |
| Abstract Scope |
Nanostructured bainitic steels have a superior combination of wear, strength, and toughness imparted by unique nanoscale-dual-phase (ferrite/austenite) features. Combination of these excellent mechanical properties makes them ideal candidates for high wear service conditions, for example, wind turbine gearbox. However, these classes of steels are still not widely used due to several processing challenges, including the long heat treatment (days) to form the nanostructure, and precise transformation kinetic control requirement from the high carbon content in these steels. This talk will focus on presenting a novel alloy design methodology incorporating CALPHAD and machine learning approaches to design new alloys that have an accelerated transformation kinetics of nanostructured bainite. Results on the validation of the down selected alloys using a combination of microscopy characterization techniques and mechanical property evaluation will be presented. To address the processability challenge, initial results the feasibility of powder metallurgy/hot isostatic pressing (PM/HIP) route will also be introduced. |
| Proceedings Inclusion? |
Planned: |