Effect of Al Addition on the Formability of Uncoated Commercial Dual Phase 1180 Steel Products

International Deep Drawing Research Group 37th Annual Conference

Sriram, S.^1 ; Huang, G.^1 ; Pottore, N.^1 ; Ghassemi-Armaki, H.^1

ArcelorMittal Global RandD- East Chicago, 3001 E. Columbus Dr., East Chicago

IN

46312, United States^1

关键词: Aluminum addition;    Bending under tension tests;    Compact tension tests;    Crack propagation resistance;    Dual phase microstructure;    Hole expansions;    Mechanical behavior;    Micro-structural characterization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/418/1/012005/pdf
DOI  :  10.1088/1757-899X/418/1/012005

来源: IOP

【 摘 要 】

This paper presents the results of intentional Aluminum addition on formability of commercial DP1180 steel grades produced at ArcelorMittal. Formability was evaluated using a suite of tests such as bending under tension test, the plane strain forming limit, crack propagation resistance using compact tension test, hole expansion, bendability, etc. Results of these formability tests demonstrated that the local formability, especially the resistance to edge fracture of the product with higher Al addition was improved in comparison with the nominal product. In addition, more detailed microstructural characterization and mechanical behavior of the products was conducted to further the understanding of the effect of Al on the performance of Dual Phase microstructures.