Dynamic Recrystallization of Ferrite in a Low Carbon Steel with the (α+θ) Duplex Microstructures

Long Fei Li; Wang Yue Yang; Zu Qing Sun

doi:10.4028/www.scientific.net/MSF.715-716.902

Paper Titles

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Grain Refinement in Austenitic Stainless Steel during Warm Screw Rolling
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Structural Changes in a 9%Cr Creep Resistant Steel during Creep Test
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Real-Space Analysis of Grain Boundary Fluctuations in Two Dimensional Colloidal Crystals
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Dynamic Recrystallization of Ferrite in a Low Carbon Steel with the (α+θ) Duplex Microstructures
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The Effect of High Temperature Grain Refinement on the Isothermal Ferrite Grain Growth Kinetics in Steel S460
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Microstructure Evolution during Annealing Treatment of Austenitic Stainless Steels
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Role of Σ9 Boundaries in Abnormal Grain Growth of Goss Grains in Fe-3%Si Steel Approached by Solid-State Wetting
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Texture Formation by the Compression Deformation of AA5182 Aluminum Alloy at High Temperatures
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HomeMaterials Science ForumMaterials Science Forum Vols. 715-716Dynamic Recrystallization of Ferrite in a Low...

Dynamic Recrystallization of Ferrite in a Low Carbon Steel with the (α+θ) Duplex Microstructures

Abstract:

Dynamic recrystallization (DRX) of ferrite in a low carbon steel with the (α+θ) duplex microstructures was investigated using hot compression tests in combination with SEM, TEM and EBSD, and the effect of the size of cementite particles was analyzed. The results indicated that during hot deformation of the low carbon steel DRX of ferrite took place and the increase in the average size of cementite particles was of benefit to DRX. The formation of DRX grains was attributed to particle stimulated nucleation (PSN), by the well development of the subgrain near cementite particles. At the beginning of hot deformation, DRX grains were mainly formed near cementite particles with the size of about 1μm or above. With the increase in the strain, such grains were also formed around pairs or groups of particles with the size of 0.5μm to 1μm.