About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Fracture of Steels: New Approaches to Modeling and Experimental Characterization
|
| Presentation Title |
Effect of Titanium Nitride (TiN) Inclusion Content on the Uniaxial Tensile Performance and Damage Evolution for an Advanced High-Strength Steel |
| Author(s) |
Rylee Davison |
| On-Site Speaker (Planned) |
Rylee Davison |
| Abstract Scope |
The steel industry is shifting towards the lower-emission Electric Arc Furnace (EAF) steelmaking process over the conventional blast furnace process. The EAF process is susceptible to higher nitrogen pickup, which can be counteracted by increasing titanium content, potentially resulting in greater titanium-nitride (TiN) inclusion counts. Higher TiN content may affect local/global formability in steels by facilitating damage accumulation. Two similar commercial steel grades were produced using the EAF and Klockner Oxygen Blown Maxhutte process and several coils with different TiN inclusion counts were tested in uniaxial tension. Post-mortem optical and scanning electron microscopy (SEM) were used to quantify the effect of TiN content on damage accumulation. The results show that increased TiN content increases the void area fraction. These preliminary findings support the need to study the relationship between the microstructure and TiN content with respect to fracture, local formability, and damage evolution. |