The origin of project grew out of the desire to provide useful corrosion information contained in unclassified, unrestricted distribution, standards that still seemed to be difficult to find if you didn't know what you were looking for. For example, the basis of this project is MIL-STD-889C Dissimilar Metals.

It was originally published in 1969 and subsequently updated in 1976 and in 2016 with a couple of minor changes and revisions in between. I have not been able to track down a copy of the original standard but the 1976 and 2016 versions are available online.

This project aims to achieve the following goals:

1. Provide the user with a list of different materials that can be selected to be combined into a galvanic couple

2. Provide an estimate of the respective, isolated, corrosion potentials for the two materials (currently only from seawater exposure)

3. Provide an estimate of the corrosion potential difference between the materials. This provides an estimate of the overpotential available to drive corrosion, though no kinetics information is provided.

4. Provide an estimate, obtained from Table 1 on pg. 6 of MIL-STD-889C, of the relative compatibility of the different materials in three different environments:
a. Marine atmosphere
b. Seawater
c. Industrial atmosphere

5. Summarize the corrosion prevention strategies for different classes of materials as contained in Appendix A.