Hall-Petch strengthening in Fe-34.5Mn-0.04C steel cold-rolled, partially recrystallized and fully recrystallized. (October 2018)

• Record Type: Journal Article
• Authors: Wang, Y.H.; Kang, J.M.; Peng, Y.; Wang, T.S.; Hansen, N.; Huang, X.
• Is Part Of: Scripta materialia. Number 155(2018)
• Page Start: 41
• Page End: 45
• Publication Date: 2018-10
• Subjects: Hall-Petch effect -- Rolling -- Annealing -- Laminated composite structure -- Steel; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.06.019
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: An Fe-34.5Mn-0.04C steel has been processed by cold rolling and annealing to prepare samples with a lamellar structure, a recrystallized grain structure and a composite structure of layers of recovered and recrystallized structures. For the recrystallized grain structure and the lamellar structure, the flow stress has been analyzed by applying Hall-Petch formulations. For the composite structure, the rule of mixture has been applied to calculate the flow stress, revealing an extra strengthening from a constraint effect. An excellent combination of strength and ductility has been found in a composite with 10% hard lamellae in a recrystallized grain structure. Graphical abstract: Unlabelled Image