| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Dilatometric Analysis of Tempering Kinetics in a Cr–Mo–V Medium Carbon Steel |
| Author(s) |
Eliuth Feliciana Barrera-Villatoro, Octavio Vázquez-Gómez, Alexis Iván Gallegos-Pérez, Héctor Javier Vergara-Hernández, Edgar López-Martínez, Pedro Garnica-González |
| On-Site Speaker (Planned) |
Eliuth Feliciana Barrera-Villatoro |
| Abstract Scope |
Tempering kinetics of the martensite was determined using the Johnson–Mehl–Avrami model in a Cr–Mo–V alloyed medium carbon steel by dilatometry. The tempering temperatures were determined by non–isothermal analysis at constant heating rate. From these temperatures, isothermal tempering was carried out at different times and the reaction stages were associated with the transformation of retained austenite in bainitic ferrite and cementite, and the conversion of transition carbides and coarsening of cementite. Through dilatometric analysis and the normalization relation the degree of reaction was calculated and it was compared with the degree of transformation estimated with JMA model. Finally, the third tempering stage were related with the kinetic tempering parameters reported in the literature. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Phase Transformations, Other |