| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Analysis by Dilatometry and Nanoindentation in an Experimental Medium-carbon Steel during the Martensite Isothermal Tempering |
| Author(s) |
Eliuth Barrera-Villatoro, Octavio Vázquez-Gómez, Perla Guadalupe Díaz-Villaseñor, Alexis Ivan Gallegos-Perez, Héctor Javier Vergara-Hernández, Bernardo Fabián Campillo-Illanes |
| On-Site Speaker (Planned) |
Eliuth Barrera-Villatoro |
| Abstract Scope |
The isothermal tempering treatment of martensite was studied in an experimental medium-carbon steel alloyed with Cr-Mo-V by differential dilatometry and nanoindentation. The martensite decomposition stages were determined under continuous heating conditions at a rate of 35 °C min-1 until reaching a temperature of 1000 °C. Through the critical transformation points associated with the stages of precipitation, dissolution and phase transformation, a temperature close to 462 °C (precipitation temperature of Cr Mo V carbides) was selected and isothermal treatments were carried out at different times: 15, 30, 60 and 120 minutes in an inert argon atmosphere. Subsequently, a nanoindentation analysis was carried out to determine the nanohardness of the present phases, correlating it with the composition of the hard phases through a microanalysis by X-ray energy dispersion spectrometry. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |