Argentum Solutions, Inc.

    Sterling guidance on corrosion and materials degradation


 

Potential-pH Diagrams
THERMEXPERT - Potential-pH diagram generator

Intelligent Tools

POLEXPERT - Polarization Scan Artificial Neural Network Expert System

SEQEXPERT - Sequential Immersion Test Artificial Neural Network Expert System

CYLEXPERT - Rotating Cylinder Electrode Intelligent Rotation Rate Calculator

Corrosion Calculator

Corrosion Rate Calculator


Corrosion Economics Estimator

FINCALCULATOR - Corrosion Economic Calculator


TUTORIAL ON SEQEXPERTTM and the SEQUENTIAL IMMERSION TEST FOR SCREENING OF NONMETALLIC MATERIALS

David C. Silverman


Table of Contents

Introduction-What is SEQEXPERT?
Overview of the Experimental Technique
Using SEQEXPERT-a step-by-step procedure
Sorption and Diffusion Effect on Sample Size and Test Duration
    Features Useful for Interpreting Results
  1. Mass fraction change during soak and dry cycles
  2. Final curvature of mass change profiles
  3. Sign of mass change for soak and dry cycles
  4. Change in Hardness
  5. Examples in the Literature
SEQEXPERT (the intelligent prediction tool)

SEQEXPERT (the intelligent prediction tool)

Armed with the information provided in this tutorial, your procedure for running the sequential immersion test and the results you obtain should be consistent with the needs of SEQEXPERT. This intelligent tool was developed using sequential immersion test and hardness change data generated for a variety of non-metallic materials in a variety of environments and for which additional field or laboratory confirmation of degradation and ultimate fitness for service was available. The non-metallic materials used in training were elastomers and a number of rigid thermoplastics.

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David C. Silverman, Ph.D. - Primary Consultant
E-Mail:     dcsilverman@argentumsolutions.com
Phone:     314-576-3586
Fax:         314-754-9825
Address:   The Argentum House
                14314 Strawbridge Ct.
                Chesterfield, MO 63017