Resource Type: Presentation

How can we correctly simulate the evolution of corrosion damage in test systems, including different surface preparations, coatings and test environments? We implement fully 3D time-dependent Multiphysics CFD simulations on a multi-material structure along with the appropriate boundary conditions (polarization behavior of the materials involved) to predict an accurate variable film thickness distribution and calculate…

Electrochemical Machining (ECM) is essentially a high-speed corrosion process. It harnesses corrosion to machine very hard metals, thin sections and complex shapes, without the tool ever touching the workpiece. The problem is that the shape does not directly determine the dimensions of the final product, which makes it hard to design the tool for accurate production.

Metal-filled coatings/primers/seals containing anodic materials are engineered to provide sacrificial protection to the underlying metal by the same mechanism as Zn, Cd, etc. The substrate is protected by an alloy pigment in the polymer coating that is electrochemically more active (anodic) than the material to be protected.

For decades the aerospace industry has employed hexavalent chrome-converted cadmium coatings, primarily for sacrificial corrosion protection of high-strength steel components.

Engineers have long known that the old methods of corrosion prediction (e.g. galvanic tables) and testing (ASTM B117) are inadequate and inaccurate.

Corrosion Djinn is easy-to-use software available on-line, that helps engineers and designers make sound material choices in design and maintenance by predicting and quantifying galvanic corrosion risk at material interfaces.