Effect of Aluminum Content on the Mechanical Properties of Dual Stabilized Ti–Nb Interstitial Free High Strength Steel (IF-HSS)

Physical Metallurgy and Drawability of Extra Deep Drawing and Interstitial Free Steels

“…30. Effect of aluminum content on mean r-value of the interstitial free high strength steel containing Mn, P, Ti and Nb (Kang et al, 2007) (Kang et al, 2007) …”

Cold Rolling Effect on Microstructure and Mechanical Properties of Low Carbon Al-Killed Steels

“…After annealing of DC04EK steels the T H value is a magnitude order higher as at hot rolled LC steel [17]. At extra deep drawing steel (EDD steel) r m value increases with cold reduction till r m ~1.8 [12], after annealing the r m value depend on the coiling temperature of hot rolled steel, on the thickness reduction, and on the annealing method (batch annealing, continuous annealing (1.3<r m <2 [20], at IF steel r m value is higher than 1.4, sometimes r m >2 depending on microalloying elements [21,22].…”

Effect of Coil Temperature on Microstructure and Texture Evolution of an High Strength Nb-IF Steel Sheet

“…In recent years, with the development of the automobile industry, both the designed shape and successfully punched in one time of car panel parts attract more attention of researchers and car manufacturers to develop new technology for improving properties of steel [1][2]. Interstitial free high strength steel (IF-HSS) containing Mn, Si and P and stabilized with either Ti or Ti+Nb have been attractive to the automobile industry due to their moderate-to-good formability and high tensile strength [3][4][5]. However, when the IF-HSS is applied to the galvannealed steel, these high amounts of Si and P tend to deteriorate excellent surface appearance and homogeneous adhesion of coated layer required for the outer panels of automobiles.…”

“…The lack of solute carbon at grain boundaries significantly decrease the bonding force at the interfaces, which often causes inter-granular brittle fracture when deeply drawn steel sheets are subjected to impact deformation at low temperature and deterioration of drawability has often been noticed in IF-HSS grade steels. Therefore, there is an interest in increasing the formability of IF-HSS without decreasing their strength [1][2][3][4][5].…”