Corrosion Solutions
... Understanding the effects
of the corrosion environment

Most corrosion treatments address the symptoms
  measuring corrosion rates
  determining life expectancy
  regular replacement of corroded material and equipment

Corrosion Analyzer addresses the cause
Investigate and determine the causes of corrosion before they happen, allowing preventive actions to be evaluated and implemented. This includes choosing correct operating conditions and corrosion resistant materials.

OLI Clients save material, equipment, time
in corrosion related costs.

Rates of Corrosion Calculations

Rigorous, realistic model of the underlying partial anodic and cathodic processes
The Corrosion Analyzer predicts the rate at which a number of oxidation / reduction reactions will proceed, including the metal dissolution reaction. An oxidation / reduction reaction will either consume or produce electrons and must be coupled to another reaction such as the net production of electrons is equal to zero.

Determine the potential for pitting corrosion
The corrosion potential is calculated and plotted against the repassivation potential. In regions where the corrosion potential is larger than the repassivation potential, localized corrosion will occur.

Understand the effects of chemistry, passivation and surface deposits on the corrosion rates
Perform Surveys varying temperature, pressure, pH, composition and 
flow velocity and plot the trend of the corrosion rate. Static, pipe flow, rotating disk, rotating cylinder and complete agitation model velocity effects.

Generation of Polarization Curves
The Corrosion Analyzer calculates and displays a polarization curve to support the rates calculations. The polarization curves show the rate at which the reactions at the metal surface are proceeding. The sum of all of the reactions results in the net current, or polarization curve.

Corrosion Analyzer Features
Automatic Inclusion of Corrosion and Redox Chemistry
Elemental and alloy metal oxidation and reduction reactions for 79 inorganic elements and thousands of species are available in the OLI Databank. The Corrosion Analyzer automatically generates the redox reactions and the resulting species and solves for the equilibrium conditions using its predictive thermodynamic model.

Calculation of Electrical Conductivity and Oxidation-Reduction Potential (ORP)
Rigorous prediction of electrical conductivity and ORP for multicomponent systems is computed for aqueous solutions.

Client applications

Application:
Produced brine corrosion on mild steel

Application:
Real-solution Pourbaix diagrams

Real-Solution Pourbaix and Stability Diagrams

Understand the mechanism and key species responsible for your corrosion
Corrosion Analyzer offers a unique, predictive framework for all aqueous mixtures. The user can easily create "real-solution" Stability Diagrams to define conditions for metal dissolution, passive films and surface deposits.

Determine optimum pH, concentrations, EH
Easily identify passivating regions with respect to pH, concentrations and potential to minimize corrosion tendencies.

Screen materials and reduce lab costs
Eliminate unrealistic materials choices and focus lab experiments on likely choices. The Corrosion Analyzer is like having a virtual corrosion laboratory on your desktop.

Predictive Thermodynamics
Computer-generated stability diagrams represent the true condition of the system (-50 to 300 C, 0 to 1500 bar, 0 to 30 molal ionic strength.

Predictive Electrical Conductivity
Over the same range of conditions

Real-Solution:

Pourbaix Diagrams
Graphical depiction of EH vs. pH for any mixture of chemicals in water is available to evaluate stable and meta-stable corrosion and redox products. This allows assessment of the effect of passivating species in real solutions without any simplifying assumptions.

Stability Diagrams
Flexible selection of independent variables and graphical depiction of local and global equilibria in various projections is available in CSP. Depictions include EH vs. composition and composition vs. pH for any chemical mixture, including trace components, to assess stable and metastable species in real solutions.

Yield Diagrams
A graphical tool is provided for designing the synthesis of compounds (e.g., ceramics) with desired yield for virtually any chemical mixture, including trace components.

FAX
973.539.5922

ADDRESS
OLI Systems, Inc.
108 American Road
Morris Plains NJ 07950

EMAIL