Effect of Deformation Temperature and Strain on Recrystallization Behavior of a Nb Micro-Alloyed Steel

Zhao Hui Zhang; Xiao Kai Liang; Yong Ning Liu

doi:10.4028/www.scientific.net/MSF.544-545.47

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Crystalline Phases and Particle Characteristics of the Combustion-Synthesized TiO₂ Nanoparticles
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Design of Rotational Particle Structure with Negative Poisson’s Ratio Using Numerical Method
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Effect of Deformation Temperature and Strain on Recrystallization Behavior of a Nb Micro-Alloyed Steel
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HomeMaterials Science ForumMaterials Science Forum Vols. 544-545Effect of Deformation Temperature and Strain on...

Effect of Deformation Temperature and Strain on Recrystallization Behavior of a Nb Micro-Alloyed Steel

Abstract:

The post-dynamic softening of Nb micro-alloyed steel and plain carbon steel was investigated through stress relaxation method. Meanwhile, By comparison with C-Mn steel, the effect of deformation temperature and strain on post dynamic recrystallization of Nb steel was studied . The result shows that element Nb in solution state can dramatically improve the apparent activation energy of static recrystallization. At lower temperature, the recrystallization can be retarded and precipitation of Nb(C, N) occured. If strain is more than the critical strain of dynamic recrystallization, the metadynamic recrystallization takes place. If fully metadynamic recrystallization takes place, the kinetics is no longer dependent on strain of the kind of steels.