Abstract
The processing conditions of the texture formation and deep drawability of a Ti-IF steel strip hot-rolled in ferritic region and subsequently annealed were investigated. The r-value increases with the decrease of reheating temperature, and finish rolling temperature and the increase of reductions in ferritic region. For lubricated ferritic rolling and annealing, the r-value is raised up to 1.75, and elongation rate is over 50% at the finish rolling temperature of 650 °C, which is suitable for DDQ grade products. However, the r-value is below 1.0 in the case of unlubricated rolling. The X-ray diffraction was used to analyze the textural characteristic of samples. For samples subjected to lubricated rolling and annealing, the strong {111}//ND recrystallization texture is distributed homogeneously along the thickness direction, and the intensity of {110} recrystallization texture is very low even in surface. However, for unlubricated samples, the {111} texture is distributed inhomogeneously and is weak along the thickness direction, and {110}//ND recrystallization texture is strong, which deteriorates the formability.
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Foundation Item: Item Sponsored by National Natural Science Foundation of China (50104004)
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Wang, Zd., Guo, Yh., Zhao, Z. et al. Effect of Processing Condition on Texture and Drawability of a Ferritic Rolled and Annealed Interstitial-Free Steel. J. Iron Steel Res. Int. 13, 60–65 (2006). https://doi.org/10.1016/S1006-706X(06)60112-X
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DOI: https://doi.org/10.1016/S1006-706X(06)60112-X