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Martensitic Transformation in AISI-316 Austenitic Steel During Thermomechanical Processing

Abstract

The paper presents the study of the martensitic transformation in AISI-316 austenitic steel during high-pressure torsion in a new design tool at ambient and cryogenic temperatures. It was found that intensive cooling with nitrogen leads to significant structure refinement and martensitic structure with a high number of high-angle boundaries. 8 HPT cycles at cryogenic temperature allows to obtain the content of martensite up to 93%.

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Acknowledgments

This research was funded by the Science Committee of the Ministry of education and science of the Republic of Kazakhstan (Grant № AP08856353).

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Correspondence to Irina Volokitina.

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Volokitin, A., Volokitina, I. & Panin, E. Martensitic Transformation in AISI-316 Austenitic Steel During Thermomechanical Processing. Metallogr. Microstruct. Anal. 11, 673–675 (2022). https://doi.org/10.1007/s13632-022-00877-4

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  • DOI: https://doi.org/10.1007/s13632-022-00877-4

Keywords

  • Stainless steel
  • Severe plastic deformation
  • High-pressure torsion
  • Microstructure