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Meeting TMS Specialty Congress 2025
Symposium 8th World Congress on Integrated Computational Materials Engineering (ICME 2025)
Presentation Title Multiscale Modeling of Microstructure Evolution of Cast Iron: From Atomistic to Macro Scales
Author(s) Ujjal Tewary, Shyamprasad Karagadde, Goutam Mohapatra, Satyam Sahay, Indradev Samajdar
On-Site Speaker (Planned) Ujjal Tewary
Abstract Scope Cast iron, an ancient material known to humans, comprises approximately 70% of modern metal castings. Its microstructure exhibits diverse graphite morphologies, encompassing flake, compacted, and spheroidal forms. This study utilized a combination of industrial casting trials, analytical microscopy, and molecular dynamics simulation to investigate the origins of graphite morphology. Based on the theoretical premise, a multiscale modeling approach was developed to simulate microstructure evolution. Molecular dynamics simulation determined the nucleation and growth kinetics for the faceted growth of graphite. These growth parameters were then integrated into a finite element-based micro-macro solidification model to simulate microstructure evolution for different graphite morphologies in cast iron. The predictions were validated by experimental results, demonstrating the effectiveness of the integrated computational multiscale modeling approach for cast iron microstructure evolution.
Proceedings Inclusion? Undecided

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