Ping Yang Feng'e Gui and Shicai Ma, Comparison of Ferrite Refinement Mechanisms by Different Processing Schedules in 08 and 20Mn Steels, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 218-223.
Cite this article as:
Ping Yang Feng'e Gui and Shicai Ma, Comparison of Ferrite Refinement Mechanisms by Different Processing Schedules in 08 and 20Mn Steels, J. Univ. Sci. Technol. Beijing, 8(2001), No. 3, pp. 218-223.
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Comparison of Ferrite Refinement Mechanisms by Different Processing Schedules in 08 and 20Mn Steels

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  • Received: 12 October 2000
  • The influence of deforming temperature on ferrite refinement was analyzed by comparing the microstructures obtained by deformation at above Ar3, in two-phase region of (α + γ) and at below A1 in clean 08 and 20Mn steels. The results indicate that ferrite refinement through strain induced transformation by deformation at above Ar3 is more effective than that by deformation simply through ferrite dynamic recrystallization. The main problem of ferrite refinement by deformation at below Ar3 is the inhomogeneity of microstructure which is controlled by the orientations and sizes of ferrite grains and the distribution of second phases. Ferrite dynamic recrystallization after strain induced transformation can further effectively refine ferrite.
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