| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
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| Presentation Title |
Monte Carlo Simulations for Synthetic Microstructure Generation of M23C6 Precipitation in 347H Stainless Steels |
| Author(s) |
William E. Frazier, Shoieb Chowdhury, Arun Sathanur, Mohammed Taufique, Ram Devanathan, Keerti S Kappagantula |
| On-Site Speaker (Planned) |
Shoieb Chowdhury |
| Abstract Scope |
A Monte Carlo simulation method capable of modeling the phase transformation behaviors of 347H stainless steels was developed for the purpose of producing synthetic microstructures that approximate its microstructural evolution under aging periods of up to 10,000 hours at temperatures between 550 °C and 750 °C. To accomplish this, experimental data from the literature was used to properly parameterize simulations and replicate the nucleation and growth kinetics of M23C6 particles within the alloy. These simulations were found to have considerable fidelity to previous efforts for modeling the precipitation of M23C6 in other 300 series stainless steel alloys when adjusted for aging temperature, duration, and carbon composition. Synthetic 347H microstructures were then generated that accounted the effects of aging temperature, duration, creep conditions, and the presence of boron within the microstructure. Current efforts to expand our modeling to incorporate additional precipitation behaviors are also discussed. |