Recrystallization and Related Phenomena. Effect of Hot Band Microstructural Factors on Recrystallization Texture in Ti-added Ultra-low Carbon Cold-rolled Sheet Steels.

Improvement of Drawability of Titanium-Stabilized Interstitial-Free Steel by Optimization of Process Parameters and Texture

“…[2,30] In this case, a variation in grain size in the throughthickness direction (Figure 4(a)), i.e., larger grains at the surface region while smaller grains in the central part of the thickness, was observed. The presence of all the above texture components, along with the inhomogeneous-grain size distribution along the through-thickness direction in 3.8-and 4.3-mm hot bands, suggests that the finish hot rolling took place below the Ar 3 temperature, [28,30,35] in the two-phase region, a + c [14,31] The actual finish-rolling temperature appears to be lower than the recorded temperature (924°C) presented in Table I.…”

“…This can be attributed to severe deformation during finish rolling in the ferritic region (a region). [14,28,30] In other words, a massive deformation in the ferritic region is believed to be responsible for the deformed grains and a texture similar to that observed in cold deformation.…”

“…hot-rolling conditions, cold reduction, annealing temperature, and heating rate. [14][15][16][17][18][19][20][21][22][23] In the continuous-rolling process of Kawasaki Steel, a hot-rolled (ferritic rolling) Ti-Nb-stabilized IF steel was annealed at 750°C for 30 minutes. The annealed hot band was subsequently cold rolled to 76 pct and continuously annealed in the range of 700°C to 900°C for 40 seconds.…”

Influence of Hot Deformation Conditions on the Annealing Behaviour of Cold Rolled Ultra Low Carbon Steel.

“…[1][2][3][4][5][6][7][8][9][10] Several investigations on the effect of hot-band microstructure on the annealing texture of cold-rolled strip have been undertaken using either annealed hot deformed steels, 4,5) or employing higher finishing rolling temperatures followed by high temperature coiling to get fully recrystallized hotbands. 11) In both cases, it was found that the microstructure prior to cold rolling can significantly affect both the rolling and annealing textures of ULC interstitial free (IF) steels. [10][11][12][13][14][15][16] It has been shown that the hot-band microstructure can be influenced by pre-heating temperature, hot rolling schedule and coiling temperature (see eg.…”

“…11) In both cases, it was found that the microstructure prior to cold rolling can significantly affect both the rolling and annealing textures of ULC interstitial free (IF) steels. [10][11][12][13][14][15][16] It has been shown that the hot-band microstructure can be influenced by pre-heating temperature, hot rolling schedule and coiling temperature (see eg. [1]).…”