| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
|
| Presentation Title |
Modelling of Quenching of Low Alloy Steels |
| Author(s) |
Ashley Scarlett, Eric Palmiere, Daniel Cogswell |
| On-Site Speaker (Planned) |
Ashley Scarlett |
| Abstract Scope |
This paper models the behaviour and microstructural evolution of SA508 Grades 3 and 4N steels using thermodynamic and kinetic modelling via JMatPro, and finite element modelling via DEFORM, during water quenches from austenitisation temperatures. Results from JMatPro are experimentally corroborated using data from the literature. Grades 3 and 4N are used to give a comparison of microstructures, and therefore some indication of mechanical performance, between two grades that are commonly used in structurally relevant components in the nuclear industry. DEFORM results are compared to thermocoupled Jominy end quench tests in order to guide further modelling. To conclude, large steel sections show microstructures that are typically less hard and tough toward the centre of the component, with much slower cooling rates and that SA508 Grade 4N is more hardenable than Grade 3. This research will be the basis of further heat treatment studies. |