Bridging microstructure and crystallography with the micromechanics of cleavage fracture in a lamellar pearlitic steel

Microstructure‐Based Modeling and Estimation of Mechanical Properties of High‐Carbon Steel

“…In the case of displacement given in y directions, the number of nodes and elements was 6,004 and 11 762, respectively, for HC0_12_3, whereas it was 7,520 numbers of nodes and 14 770 numbers of elements in the case of HC1_12_4. In the present research, cementite was considered perfectly elastic, and the flow stress of ferrite was estimated from the Ludwik equation, as shown by Equation (1).…”

“…due to superior strength, wear resistance, and machinability. [1,2] The microstructure and mechanical property correlation of ferrite-pearlite (F-P) steels with near-eutectoid compositions has been studied by many researchers to date by combining numerous numerical and experimental methods. [3][4][5] It has already been reported that the microstructural characteristics like ferrite grain size, the volume fraction of ferrite (F) and pearlite (P), pearlite nodule size, interlamellar spacing (λ), etc.…”

“…[11,14] They have used Ludwik's equation for modeling the flow curves of the constituent phases, which is similar to an earlier study by Sun et al [11,14,15] Modeling the elastoplastic behavior of the pearlite phase from a microstructure consisting of alternative ferrite and cementite lamellae is an important area for researchers to explore because these types of steels possess an excellent combination of strength and ductility. [1,2] It has already been reported that under uniaxial loadings, enormous variations in the stress and strain values occur in soft ferrite and hard cementite phases. [11,14] Ishikawa et al studied the deformation behavior of F-P steel and they have shown that the modeling results correlate well with the experimental flow behavior for an axisymmetric unit cell.…”