DOI

The relationship between the microstructural changes and the yield strength of a 316L austenitic stainless steel subjected to plate rolling at temperatures of 200 and 300°C with 40, 65, 85 and 95% rolling reductions was studied. The structural changes during rolling at studied temperatures were characterized by the development of deformation twinning and micro-shear banding that led to a reduction of the transverse grain size. The martensitic transformation hardly developed during rolling at 200°C, when the martensite fraction did not exceed 5% after 95% rolling reduction, and did not occur at all during rolling at 300°C. The grain refinement was accompanied by an increase in the yield strength from 670 to 1240 MPa depending on the rolling regimes. The shape of the stress-strain curves also strongly depended on the rolling temperature and reduction. The shape of the stress-strain curve was characterized by a long plateau-like region right after yielding in the samples subjected to rolling at 300°C with 40 and 65% rolling reductions. A decrease in the rolling temperature and/or increase in the rolling reduction shortened plateau region followed by its disappearance. The effect of rolling conditions on the evolved microstructures and the mechanical properties is discussed in some detail.

Original languageEnglish
Title of host publicationProceedings of the International Conference "Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology"
EditorsEvgeny A. Kolubaev, Vasily M. Fomin
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735441903
ISBN (Print)9780735441903
DOIs
StatePublished - 22 Apr 2022
EventInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2021 - Tomsk, Russian Federation
Duration: 6 Sep 202110 Sep 2021

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics
ISSN (Print)0094-243X

Conference

ConferenceInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2021
Country/TerritoryRussian Federation
CityTomsk
Period6/09/2110/09/21

    Scopus subject areas

  • Physics and Astronomy(all)

ID: 97616067