
The application of advanced high-strength steels (AHSS) by automakers is now a consolidated reality. In this scenario, Dual Phase (DP) steels deserve special mention due to their versatility in a vast range of applications, since they present an excellent combination between high mechanical strength and high ductility. On the other hand, applying a classical DP steel, with microstructure formed essentially by ferrite and martensite, shear fracture and edge cracking, have regularly been observed in die-bending and flanging operations. In this work the improvement of stretch-flangeability, while still keeping an appropriate ductility, of a classical 980 MPa DP steel was pursued by testing different intercritical annealing conditions in a dilatometer and a Gleeble thermomechanical simulator. According to the results obtained in this study, the stretch-flangeability improvement of a cold-rolled dual phase steel intercritically annealed can be obtained by increasing the soaking and austempering temperatures.
Mining engineering. Metallurgy, Automotive application, Stretch-flangeability, TN1-997, Hole expansion ratio (HER), Dual phase steel
Mining engineering. Metallurgy, Automotive application, Stretch-flangeability, TN1-997, Hole expansion ratio (HER), Dual phase steel
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
