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The processing of metallic materials through the application Thermomechanical
Processing (TMP) has now become of major importance in the world research and industrial
companies. A great attention is paid to study of mechanism TMP applied to different
techniques and technological processes providing ultrafine-grained state of metal materials
including submicro - and nanocrystalline ones. The main development in terms of obtaining
bulk metallic materials received in the recent years, various schemes of TMP of metallic
materials, which allows to realize the severe plastic deformation (SPD). The approach usually
propose realization of large plastic strains, providing a well-developed fragmented
substructure with the creation of high-angle misorientation between the fragments of the
substructure. This paper discusses the physical fundamentals and various methods of
thermomechanical processing, applied to single and multiphase steels and alloys ensuring the
produce ultrafine-grained (UFG) metallic materials.
Keywords: ultrafine-grained (UFG) metallic materials, severe plastic deformation (SPD), large plastic strain, thermomechanical processing (TMP), fragmented substructure |
full paper (pdf, 1136 Kb)