Extremely high strength achievement in medium-C nanobainite steel. (15th July 2018)

• Record Type: Journal Article
• Authors: Zhao, J.; Guo, K.; He, Y.M.; Wang, Y.F.; Wang, T.S.
• Is Part Of: Scripta materialia. Number 152(2018)
• Page Start: 20
• Page End: 23
• Publication Date: 2018-07-15
• Subjects: Steel -- Ausrolling -- Austempering -- Nanobainite -- Tensile properties; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.04.005
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Nanobainite was produced in medium-C Si-rich steel through ausrolling at 500 °C and subsequent austempering at temperatures slightly above the martensite start temperature. The tensile properties were studied and compared to high-C nanobainite steels. Extremely high ultimate tensile strength (2223–2581 MPa) and appreciable total elongation (6.2–8.5%) were achieved in the medium-C nanobainite steel, which were comparable and even correspondingly superior to high-C nanobainite steels. In addition, the strengthening mechanism was briefly discussed. Graphical abstract: Unlabelled Image