Corrosive Chronicles Theatre Session at CORROSION 2019 in Nashville​

Corrosion Prediction and Testing for Aerospace and Defense

Tuesday, March 26, 2019

Exhibit Hall / Red Theatre (Booth 1114) 1pm to 5pm

Organizers - Alan Rose and Keith Legg

Engineers have long known that the old methods of corrosion prediction (e.g. galvanic tables) and testing (ASTM B117) are inadequate and inaccurate. New capabilities for computational corrosion prediction are improved in order to exactly understand how the corrosion occurs and how severe it will be; and with that information to design more durable systems. The aim of the session is to provide a discussion Forum to share information and ideas on corrosion modeling and testing so as to predict and minimize corrosion in complex systems. The Forum will bring attendees up to speed with developments in the area of corrosion prediction and test development and raise awareness of changes in the MIL-STD-889 specification and how this will impact design methods.

  1. Victor Rodriguez-Santiago, Head of Corrosion and Wear Branch at NAVAIR.

This presentation will combine “Development and Validation of a Cyclic Humidity Corrosion Test” (SERDP-ESTCP Symposium 2018) and “Galvanic Compatibility Assessment: New Methodology and Standardization” (ASETS Defense Workshop 2018).    

NAVAIR manages the revisions of MIL-STD-889. Victor is managing the MIL-STD-889 updates and is heading a DoD project to validate and qualify a new cyclic relative humidity (CRH) test that is already showing itself to be an improved and more realistic approach.

  1. Jim Dante, Manager of Environmental Performance of Materials at Southwest Research Institute.

This presentation will summarize “Cyclic Corrosion and Failure Mechanisms” (SERDP-ESTCP Symposium 2018).

Jim carried out the DoD SERDP program to develop the CRH testing, and is leading the testing and evaluation that supports the new test methodology. This is a more realistic and accurate representation of how corrosion occurs in real environments, as opposed to ASTM B117 for example.

  1. Kristen Williams, Senior Materials Engineer at Boeing.

This presentation will summarize “Degradation and Failure Mechanisms of Protective Coating Systems” (SERDP-ESTCP Symposium 2018).

The first line of defense against corrosion is the paint system. Boeing is carrying out degradation, damage and failure testing of those aircraft paint systems under combined loading and corrosion.

  1. Alan Rose, CEO/Principal Engineer at Corrdesa LLC.

Presentation title, “Using simulation to understand the difference between corrosion in atmospheric environments and chamber tests”.

Alan will be discussing how corrosion prediction and modeling pulls together all the previous elements. The goal is to predict and minimize failure and corrosion rates over complex systems in the design phase, rather than trying to fix corrosion-prone designs during sustainment. Corrosion modeling can also be used to plan and minimize the extent and cost of corrosion testing, especially when transitioning out of Cd and chromates.