All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.


Effect of a plastic deformation on the electrochemical behaviors and the corrosion rates of pure iron, nickel and copper in a molar solution of sulfuric acid

Author(s): Patrice Berthod

Stresses applied to ductile alloys or pure metals may induce severe plastic deformation with multiplication of defects and dislocations in their crystal networks. Such a disorder in the microstructure can influence the surface reactivity of the alloys, with consequences for their behaviour in corrosion. Here, cast pure iron, pure nickel and pure copper were elaborated by high induction melting, and some of the obtained samples were plastically deformed by compression.As-cast samples and plastically deformed samples were prepared as electrodes and tested in H2SO4 solution, added or not with a corrosion inhibitor, according to the Stern-Geary and Tafelmethods. Polarization resistances, corrosion current densities and corrosion potentialswere measured. The electrochemical characterization of the corrosion behaviour was completed by performing cyclic polarization experiments. Globally the plastic deformation improved the corrosion behaviour of iron but inversely decreased the corrosion resistance of nickel and of copper.

Share this       

Share this Page.

Table of Contents

izmir escort izmir escort bursa escort antalya escort izmir escort porno porno izle türk porno eskişehir escort bartın escort burdur escort havalandırma izmir escort bursa escort porno indir izle escort izmir