Prediction of Microstructure for Heat Treatment Process in Dual Phase Steels using Cellular Automata

Reddy, K Vijay (2016) Prediction of Microstructure for Heat Treatment Process in Dual Phase Steels using Cellular Automata. MTech thesis.

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Abstract

In this paper, a cellular automata method based model is proposed for simulating phase transformation kinetics of inter-critical heating of dual phase (DP) steel. This developed model deals with the kinetics of pearlite dissolution, ferrite transformation and austenite grain growth based on carbon diffusion process. The diffusion equation is discretized and solved by finite difference method (FDM) whereas austenite grain growth is controlled by transition rules applied in cellular automata algorithm. The model is operated in the temperature range of 730 0C to 890 0C for four different specimens of DP steel. This model predicts appropriately the microstructure and volume fraction of formed austenite during inter-critical heating of DP steel. In addition, this study shows that the presence of carbon and alloying elements enhances carbon equivalent of DP steel, helps in austenite formation.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Cellular automata; Dual phase steel; Intercritical annealing; Carbon equivalent
Subjects:Engineering and Technology > Metallurgical and Materials Science > Physical Metallurgy
Divisions: Engineering and Technology > Department of Metallurgical and Materials Engineering
ID Code:8514
Deposited By:Mr. Sanat Kumar Behera
Deposited On:30 Aug 2017 11:31
Last Modified:30 Aug 2017 11:31
Supervisor(s):Pal, S

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