H13 is a hot work tool steel used as extrusion and forging dies in metal forming industries. It is characterized by its high thermal stability and wear resistance. For large size tools, H13 alloy bars are generally produced by hot open-die forging of cast ingots. However, the selection of the hot forging parameters significantly influences the evolution of the microstructure, and hence the final properties, as well as the formability of the alloy, which may lead to surface cracks and internal defects during forging. In the present work, a thermomechanical study of H13 was conducted to quantify the impact of different deformation conditions on microstructure evolution and to better understand the characteristics of this steel. Specifically, the kinetics of grain growth and carbide dissolution at different forging temperatures were determined. Then, hot compression tests enabled the modelling of stress strain curves.
| Date | 15 May 2024 |
|---|
| Original language | American English |
|---|
| Awarding Institution | - École de technologie supérieure
|
|---|
| Supervisor | Mohammad Jahazi (Supervisor) |
|---|
Ebacher, L. (Author),
Jahazi (Supervisor),
15 May 2024Student thesis: Master's thesis › Master in Engineering: Mechanical Engineering