Observation of simultaneous increase in strength and ductility by grain refinement in a Fe-34.5Mn-0.04C steel

38th Risø International Symposium on Materials Science

Wang, Y.H.^1,2 ; Kang, J.M.^2 ; Peng, Y.^1 ; Zhang, H.W.^1 ; Wang, T.S.^2 ; Huang, X.^3

National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao

066004, China^1

National Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao

066004, China^2

Section for Materials Science and Advanced Characterization, Department of Wind Energy, Technical University of Denmark, Riso Campus, Roskilde

DK-4000, Denmark^3

关键词: Fine grained;    Recrystallized grain sizes;    Strength and ductilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/219/1/012043/pdf
DOI  :  10.1088/1757-899X/219/1/012043

来源: IOP

【 摘 要 】

Fine grained Fe-34.5Mn-0.04C steel samples with fully recrystallized grain sizes of 3.8 to 2.0 μm were prepared by cold rolling followed by annealing a temperatures of either 650 °C or 800 °C. It is found that a simultaneous increase in both strength and ductility can be obtained by grain refinement, leading to an observation that the best combination of strength and ductility occurs in the sample with the finest recrystallized grain size.