J Shanghai Jiaotong Univ Sci ›› 2011, Vol. 16 ›› Issue (3): 360-363.doi: 10.1007/s12204-011-1161-0

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Influence of soaking temperature on microstructure of multi-pass compression deformation for low carbon steels

He Y.-L.; Wu X.-Y.; Zhu N.-Q.; Zhang M.; Lin D.-W.; Li L.   

  1. Department of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
  • Published:2025-06-27

Abstract: The influence of soaking temperature on microstructure of high temperature multi-pass compression deformation for two low carbon steels (steel A: w C = 0.032% and wMn = 0.25%; steel B: w C = 0.165% and wMn = 0.38%) is studied on the thermal-mechanical simulator in order to rationalize the hot-rolling schedule of low-carbon steel and to promote the low-temperature heating technology. The results show that the microstructures of steel A are almost not affected by reducing soaking temperature, but the acicular ferrite forms in steel B when the soaking temperature is reduced from 1 200 to 1 170?, due to its smaller initial austenite grain size according to recrystallization kinetics theory. © Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg 2011.

Key words: Low-carbon steel; Multi-pass compression deformation; Soaking temperature