Electrochemical Characterization of Advanced High Strength Steel DP 780 MPa

  • A. Escalona GómezEmail author
  • M. Delgado Espino
  • M. del R. Lara Banda
  • F. Almeraya Calderón
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


Nowadays, with the increase of environmental problems, car safety became the major priority for the automotive industry. This is why advanced high strength steels were implemented instead of conventional steels. Dual-phase (DP) steels are part of this group due to their excellent combination of mechanical properties. The objective of this work is to study the corrosion behavior in a DP steel with a tensile strength of 780 MPa, in the presence of chlorides, applying electrochemical techniques obtaining parameters such as corrosion rate, type of corrosion, density of corrosion current, and corrosion potential. To know the chemical composition of the material, the X-ray fluorescence technique was used, at the end of the tests a stereoscope was used to see its morphology. As electrolytes were used: water (H2O), magnesium chloride (MgCl2), sodium chloride (NaCl), and calcium chloride (CaCl2) at 3.5 wt% and was evaluated using electrochemical techniques of potentiodynamic polarization curves (PP) and electrochemical noise (EN), using a three-electrode cell. The results indicated activation in the anodic branch, in addition there is pitting corrosion in the material under study mostly in the presence of magnesium chloride.


AHSS Corrosion Pitting Electrochemical 


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Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  • A. Escalona Gómez
    • 1
    Email author
  • M. Delgado Espino
    • 1
  • M. del R. Lara Banda
    • 1
  • F. Almeraya Calderón
    • 1
  1. 1.Facultad de Ingeniería Mecánica Y Eléctrica, FIME. Centro de Investigación E Innovación En Ingeniería Aeronáutica, CIIIAUniversidad Autónoma de Nuevo León, UANLSan Nicolás de Los GarzaMexico

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