Paper Title:
Effect of Amino Acids on the Corrosion of Steel in Sulfuric Acid Solutions
  Abstract

The influence of amino acids on the corrosion behaviour of steel in H2SO4 solutions was studied by potentiodynamic polarization, AC impedance and weight-loss. The Potentiodynamic polarization curve results show that compound amino acids are mixed-type inhibitors which inhibit the reactions of anode and cathode; AC impedance results show that the ternary complex inhibitors have a good synergistic effect and high corrosion rate which can be proved by Resistance (Rt), double-layer capacitance (Cdl), Resistance modulus(︱Z︱), and phase angle from the Nyquist chart, Bode chart and phase angle chart. The weight-loss method show that the corrosion efficiency of composite amino acids are over 90% in 0-16 hours, 30-50°Cand 0.4-2.0mol / L sulfuric acid.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
3142-3145
DOI
10.4028/www.scientific.net/AMR.239-242.3142
Citation
X. H. Liu, Q. H. Wang, Y. L. Rui, "Effect of Amino Acids on the Corrosion of Steel in Sulfuric Acid Solutions", Advanced Materials Research, Vols. 239-242, pp. 3142-3145, 2011
Online since
May 2011
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Price
$32.00
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