|About this Abstract
||Materials Science & Technology 2019
||Formability and Fracture of Metal Sheets
||Edge Stretchability of Hot Rolled High-strength Low-alloy Steel
||David Overby, Chad Cathcart, Xingcai Yu, Tihe Zhou, Peter Badgley, Chris Martin-Root
|On-Site Speaker (Planned)
Three different chemical composition approaches of hot rolled high strength low alloyed steels (HSLA) grade 80 (550 MPa), produced at Stelco’s Lake Erie Works (LEW), were studied to correlate composition with microstructure, mechanical properties and edge stretchability. Each product showed a ferrite, pearlite microstructure with fine precipitates. Mechanical properties of each design were very similar, however, the hole expansion ratios ranged from 48% to 68%. Metallography, fractography and inclusion studies were conducted to determine the underlying factors that control the edge stretchability during hole expansion testing. Some basic trends were detected which could be useful to design new HSLA steel grades with enhanced edge stretchability.
||Definite: At-meeting proceedings