This paper presents a novel physical–mathematical model to describe the relationship between the crystallographic texture and corrosion behavior of American petroleum institute (API) 5L steels. Symmetric spherical harmonic functions were used to estimate the material’s corrosion resistance from crystallographic texture measurements. The predictions of the average corrosion resistance index made from the crystallographic texture were in good agreement with those obtained from potentiodynamic polarization and electrochemical impedance spectroscopy measurements for the studied steels. This agreement validates the capacity of this model and opens the possibility of applying it as a novel criterion for materials selection and design stages to combat corrosion problems.
The present work shows a novel physical-mathematical model to estimate the average 12 corrosion resistance index from the crystallographic texture in API 5L steels. The crystallographic 13 texture of the studied steels was measured by means of the X-ray diffraction technique. The model,
14based on the symmetric spherical surface harmonics for a BCC structure, is capable of describing
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