Metallurgical and Materials Transactions A

, Volume 43, Issue 6, pp 2043-2055

First online:

Texture and Microstructural Evolution in Pearlitic Steel During Triaxial Compression

  • Pankaj KumarAffiliated withDepartment of Materials Engineering, Indian Institute of Science
  • , Nilesh P. GuraoAffiliated withDepartment of Materials Engineering, Indian Institute of Science
  • , Arunansu HaldarAffiliated withTata Steel, Research and Development Section
  • , Satyam SuwasAffiliated withDepartment of Materials Engineering, Indian Institute of Science Email author 

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This article presents the deformation behavior of high-strength pearlitic steel deformed by triaxial compression to achieve ultra-fine ferrite grain size with fragmented cementite. The consequent evolution of microstructure and texture has been studied using scanning electron microscopy, electron back-scatter diffraction, and X-ray diffraction. The synergistic effect of diffusion and deformation leads to the uniform dissolution of cementite at higher temperature. At lower temperature, significant grain refinement of ferrite phase occurs by deformation and exhibits a characteristic deformation texture. In contrast, the high-temperature deformed sample shows a weaker texture with cube component for the ferrite phase, indicating the occurrence of recrystallization. The different mechanisms responsible for the refinement of ferrite as well as the fragmentation of cementite and their interaction with each other have been analyzed. Viscoplastic self-consistent simulation was employed to understand deformation texture in the ferrite phase during triaxial compression.