Browse Publications Technical Papers 2014-01-0992
2014-04-01

Edge Formability and Material Characterization of Hot-Rolled Multiphase Steels 2014-01-0992

New innovations in the field of advanced high strength steels (AHSS) have led to the development of steels with improved stretch-flangeability known as hot-rolled multi-phase (HR) steels. To understand the performance of HR steels, hole expansion tests were conducted on five prototype HR steels and compared with their commercial dual-phase (DP) steel equivalent. A variety of hole edge conditions were considered to study the influence of the shear-affected-zone (SAZ), the surface roughness at the sheared edge and the shear burr orientation. The microstructure of each material was characterized and discussed in relation to its formability for the different edge conditions. It was observed that the bainitic-ferrite microstructure of the HR steels showed superior formability during sheared edge stretching compared to commercial dual-phase steels.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Optimal Production Trimming Process for AHSS Sheared Edge Stretchability Improvement

2014-01-0994

View Details

TECHNICAL PAPER

Effect of Fiber Laser Welding on the Fatigue Properties of Dissimilar Welded Joints between DP980 and HSLA Steels

2014-01-0990

View Details

TECHNICAL PAPER

Technological Comparison for Dual Phase and Advanced High Strength Low Alloy Steels Regarding Weldability and Mechanical Properties

2014-01-0988

View Details

X