Thesis Title: Thermomechanical Processing of Microalloyed Bar Steels for Induction Hardened ComponentsAbstract: Thermomechanical rolling of microalloyed steels has been shown to produce refined final microstructures in steel sheet and plate production. This project studies the effects of chemical composition and thermomechanical processing steps in preconditioning steel bars for subsequent induction hardening in order to improve both fracture toughness and fatigue life. Processing details are designed to investigate behaviors of microalloying additions either in solution, as fine precipitates formed in ferrite, and as coarse precipitates formed in austenite.
Degree Plan: Doctorate of Philosophy
Completion: May 2017
Group: Bar & Forging Steels
Steel Center Student Since: August 2012
Bio: Blake joined the steel center in August of 2012, after graduating with a Bachelor of Science in Metallurgy and Materials Engineering from University of Alabama.
- B. M. Whitley, J. G. Speer, R. L. Cryderman, R. C. Goldstein, K. O. Findley, D. K. Matlock, Effects of Microalloy Additions and Thermomechanical Processing on Austenite Grain Size Control in Induction-Hardenable Medium Carbon Steel Bar Rolling, International Conference on Processing & Manufacturing of Advanced Materials Processing, Fabrication, Properties & Applications, Conference Proceedings, 2016.
- R. Cryderman, B. Whitley, and J. Speer, Microstructural Evolution in Microalloyed Steels with High-Speed Thermomechanical Bar and Rod Rolling, in International Federation of Heat Treatment and Surface Engineering, Proceedings of the 23rd IFHTSE Congress, 2016.
- B. M. Whitley, A. L. Araujo, J. G. Speer, K. O. Findley, D. K. Matlock, Analysis of Microstructure in Hot Torsion Simulation, Materials Performance and Characterization, ASTM, Vol. 4, No. 3, 2015, pp. 307-321.
- B. M. Whitley, C. T. Easter, R. L. Cryderman, J. G. Speer, Thermomechanical Simulation and Microstructural Analysis of Microalloyed Medium Carbon Bar Steels, in Advances in Metallurgy of Long and Forged Products, Vail, CO, 2015, pp. 48-58.