Recrystallization Behavior of 0.11% Ti-Added Complex Phase Steel during Hot Compression

Abstract:

Double-hit isothermal deformation and multi-pass continuous cooling hot compression tests were carried out to study the recrystallization behavior of a 0.11 (in mass %) Ti-microalloyed complex phase (CP) steel. The influence of different deforming temperatures and holding times on microstructure evolution was investigated. The results showed that a pronounced austenite grain refinement after appropriate recrystallization process has been detected. The grain size decreases continuously from 176μm to 20μm after four-pass compression. It has been verified that non-crystallization temperature (T_nr) of the experimental steel is about 975°C under the deformation conditions. Based on the stress-strain curves, a kinetic method was established to predict the non-recrystallization temperature of the studied steel during nonisothermal continuous hot deformation.

• Periodical: Materials Science Forum (Volume 762)
• Pages: 128-133
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.762.128
• Online since: July 2013
• Authors: Mei Zhang, Chao Bin Huang, Wei Ming Zeng, Ren Yu Fu, Lin Li
• Keywords: Non-Isothermal Hot Deformation, Recrystallization, Ti-Microalloyed Complex Phase Steel

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