| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
Direct Observation of Boron Nitride Dissolution in a Heat Resistant Martensitic Steel Using Confocal Scanning Laser Microscopy |
| Author(s) |
Andrew (Drew) Huck, Bryan Webler |
| On-Site Speaker (Planned) |
Andrew (Drew) Huck |
| Abstract Scope |
Boron and nitrogen have become increasingly important in modern steels to impart greater creep resistance in forged products for elevated temperature applications. During solid-state processing, these two elements can combine under certain conditions and form coarse boron nitrides (BN), which can negatively impact properties and decrease the effect of these elements on creep resistance. Dissolution of these features in a heat-resistant martensitic steel has been observed in controlled furnace heat treatments. This study attempts to observe real time dissolution of BN particles using confocal scanning laser microscopy (CSLM) to confirm the thermodynamic stability range of these particles, which has been modeled using ThermoCalc. CSLM is a technique that allows surface observation with controlled temperature and atmospheric conditions, which should allow direct optical observation of these features. This should inform future heat treatment practices and expand knowledge of the thermodynamics of these particles. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Phase Transformations, High-Temperature Materials |