PSI - Issue 3

Jesús Toribio et al. / Procedia Structural Integrity 3 (2017) 3–10 Author name / Structural Integrity Procedia 00 (2017) 000–000

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7. Closure: from Raffaello Sanzio to Vincent van Gogh In the matter of microstructure evolution with cold drawing and microstructural integrity (Figs. 3-5), while the pearlitic pseudocolonies found in the longitudinal metallographic sections seem to be the responsible of fracture path deflection and anisotropic fracture behavior, the effect of cementite lamellae curling appearing in the transverse metallographic sections is not so clear. Such a curved arrangement (Fig. 5) associated with heavily cold-drawn pearlitic steels resembles the appearance of the sky in the painting of Vincent van Gogh, as suggested by Gil Sevillano and Flaquer-Fuster (1997) and by Gil-Sevillano et al. (1998), so that it could be called van Gogh sky (VGS) or, more properly, van Gogh texture (VGT), and it is represented by the three van Gogh paintings of Fig. 10. On the other hand, in the case of slightly cold-drawn pearlitic steels , their microstructure (Fig. 3) is quasi-planar and the metallographic sections are constituted by straight lines associated with Renaissance Perspective of the painter Raffaello Sanzio, i.e., Raphael Painting Perspective or Renaissance Painting Perspective (RPP), although this structure (with vanishing point) appears in classical painters such as Tintoretto and Velazquez, as shown in Fig. 11.

Fig. 10. Paintings by Vincent van Gogh: Starry Night, Noon Rest and The Church in Auvers.

Fig. 11. Paintings by Raffaello Sanzio ( Scuola di Atene ), Tintoretto ( La lavanda dei piedi ) and Velázquez ( Las Meninas ).

Acknowledgement This is the written text associated with an Invited Plenary Lecture given at the 24 th Italian Conference on Fracture (IGFXXIV) held in Urbino during 1-3 March 2017. The author wants to express his deepest acknowledgement and gratitude to the President of the Italian Group on Fracture (IGF), Professor Francesco Iacoviello, for inviting him to give the lecture, and the paper is dedicated to him and to Professor Donato Firrao in the year of his retirement. In Memoriam The paper is dedicated to the memory of Professor Paulo Lazzarin who passed away in 2014.