PSI - Issue 16

Jesús Toribio / Procedia Structural Integrity 16 (2019) 281–286 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

283

3

3. Microstructural evolution in pearlite during cold drawing

Figs 2 – 4 include the two microstructural levels (pearlite colonies and Fe/Fe 3 C lamellae) in progressively cold drawn pearlitic steels, showing the progressive orientation of both colonies and lamellae in the cold drawing (wire axis) direction, as described by Toribio and Ovejero (1997, 1998a, 1998b, 1998c).

Fig. 2. Pearlitic microstructures in longitudinal (left) and transverse (right) metallographic sections for a steel that has undergone 0 drawing steps. In the longitudinal section the vertical side of the micrograph correspond to the wire axis or cold drawing direction.

Fig. 3. Pearlitic microstructures in longitudinal (left) and transverse (right) metallographic sections for a steel that has undergone 3 drawing steps. In the longitudinal section the vertical side of the micrograph correspond to the wire axis or cold drawing direction.

Fig. 4. Pearlitic microstructures in longitudinal (left) and transverse (right) metallographic sections for a steel that has undergone 6 drawing steps. In the longitudinal section the vertical side of the micrograph correspond to the wire axis or cold drawing direction.