abstract

• The present work determined the kinetics of transformation of the retained austenite to martensite during the plastic deformation by tension and compression of TRIP steel. AISI-1018 steel was melted in an electric induction furnace, to which FeMn and FeSi were added to adjust the chemical composition to 0.21%25C, 1.22%25Mn, and 2.16%25Si. Specimens for tension tests and rectangular specimens for compression were machined. The plastic deformation of the specimens was carried out at different percentages of deformation, for the tension tests, these were 5.5, 11, 16, 20, and 25%25, and fracture, for the rolling specimens they were 6.5, 13.5, 20.5, 34, 5 and 60%25. The microstructural characterization results reveal the presence of ferrite, bainite, and retained austenite, the tensile strength was 890 MPa and 31%25 elongation. The evaluation of the retained austenite after plastic deformation shows that the transformation kinetics is higher in a tension deformation process than in compression. Graphical abstract: [Figure not available: see fulltext.] © 2022, The Author(s), under exclusive licence to The Materials Research Society.

authors

• Cruz Rivera José de Jesús
• Garnica-González P.
• Medina-Flores A.
• Pacheco-Cedeño J.-S.

publication date

• 2022-01-01

published in

• MRS Advances  Journal

keywords

• Austenite; Bainitic transformations; High strength steel; Kinetics; Manganese alloys; Manganese steel; Plastic deformation; Plasticity; Silicon alloys; Silicon steel; Tensile strength; Transformation Induced Plasticity steel; Chemical compositions; Electric induction; Induction furnace; Microstructural characterizations; Retained austenite; Tension and compression; Tension deformation; Tension tests; Transformation kinetics; TRIP-steel; Tensile testing

Digital Object Identifier (DOI)

• 10.1557/s43580-022-00400-5

PubMed ID

start page

• 1060

end page

• 1065

volume

• 7

issue

• 33