About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
| Presentation Title |
G-1: A Combined Experimental and Computational Study on Quench Cracking Characterisation and Martensite Evolution in Bearing Steels |
| Author(s) |
Aysel Aysu Catal Isik, Lizeth Sanchez-Camacho, Mangesh Pantawane, Vikram Bedekar, Enrique Galindo-Nava |
| On-Site Speaker (Planned) |
Aysel Aysu Catal Isik |
| Abstract Scope |
The rapid growth in the wind energy market requires improving the performance of bearing steels by optimising their manufacturing; however, bearings are prone to quench cracking and predicting the links between martensite evolution and microcracking is required to define better processing routes. This work combines experimentation and computational modelling to connect martensite evolution to quench cracking. First, we present a new microcrack characterisation technique based on optical microscopy and SEM-EBSD. This method examines crack length, angle and location on individual martensite plates on steels with various thermal histories. The results demonstrate a strong correlation between crack density, martensite variant selection, morphology and heat treatment temperatures. A new nucleation model coupling martensite nucleation rate and growth kinetics is developed to predict martensite evolution using phase field modelling. The model correctly predicts variant selection and cascade-like nucleation behaviour consistent with experimental results, demonstrating its potential to assist in designing novel high-performance steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Modeling and Simulation, Computational Materials Science & Engineering |