Abstract
Dissolution of spheroidal cementite in austenite at 910°C has been studied by means of scanning and transmission electron microscopy. Three different morphologies of transformation have been observed. Most of the particles undergo a more or less homogeneous shrinkage. However, some of the particles transform to austenite by a Widmanstätten type of reaction, whereby austenitic plates form inside the cementite. It is also observed that some of the cementite transforms to M7C3 carbide and austenite by a eutectoid reaction. The results can be understood by considering the phase diagram and assuming that local equilibrium prevails at the phase interface during the reaction.
| Original language | English (US) |
|---|---|
| Title of host publication | Zentropy |
| Subtitle of host publication | Tools, Modelling, and Applications |
| Publisher | Jenny Stanford Publishing |
| Pages | 603-620 |
| Number of pages | 18 |
| ISBN (Electronic) | 9781040118566 |
| ISBN (Print) | 9789815129441 |
| State | Published - Aug 23 2024 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Physics and Astronomy
- General Chemistry
- General Agricultural and Biological Sciences
- General Biochemistry, Genetics and Molecular Biology
- General Medicine
- General Chemical Engineering