Effect of Normalizing Cooling Process and Cold-Rolling Reduction Ratio on the Microstructure and Macro-texture in Hi–B Steel
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Abstract
Microstructure and macro-texture with different normalizing processes for Hi–B steel were analyzed and compared with the non-normalizing cold-rolled steel by optical microscopy, X-ray diffractometer. The results show that the degree of the elongated grain is small after normalizing, and through the normalizing and cold-rolling process, the tissue of cold-rolled sheet is more uniform, the content of the beneficial {111}〈112〉 texture is relatively higher, and the intensity of α fiber texture is weakened and the intensity of γ fiber texture is gradually enhanced. When the reduction ratio is 88%, the content of {111}〈112〉 texture is the maximum and the intensity of γ fiber texture is the strongest, which is beneficial to the improvement of the {111}〈112〉 texture during the primary recrystallization and the growth of the Goss grains.
Keywords
Hi–B steel Normalizing cooling process Microstructure Macro-textureReferences
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