| Autor: |
H. J. Vergara-Hernández, Octavio Vázquez-Gómez, P. Garnica-González, E. F. Barrera-Villatoro, Edgar López-Martínez, A. I. Gallegos-Pérez |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
The Minerals, Metals & Materials Series ISBN: 9783030652609 |
| DOI: |
10.1007/978-3-030-65261-6_80 |
| Popis: |
Tempering kinetics of the martensite was determined using the Johnson–Mehl–Avrami model in a Cr–Mo–V alloyed medium-carbon steel by dilatometry. Tempering temperatures were determined by non-isothermal analysis at constant heating rate. From these temperatures, isothermal tempering was carried out. The reaction stages were associated with the transformation of retained austenite in bainitic ferrite and cementite, and the conversion of transition carbides into cementite. For the third stage, through dilatometric analysis and the normalization relation, the grade of reaction was calculated and compared with the estimated with JMA model. Finally, this stage was related with the kinetic tempering parameters reported in the literature. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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