Accelerated Galvanic Corrosion Test: Why Does It Matter?

Corrosion weakens the material, shortens the product's lifespan, and increases the maintenance costs over time.

That’s why it’s crucial to nip it in the bud, before it becomes a full-fledged problem that goes out of control.

However, in cases where two different metals are used together, corrosion can take place at an accelerated pace, posing severe structural failure risks.

This is where the test for accelerated galvanic corrosion comes into the equation.

What does this test do? It uncovers the initial decay, allowing one to make better material choices, and guarantees the safety of the entire structure.

Let’s understand why the accelerated galvanic corrosion test matters in a little more detail!

Accelerated Galvanic Corrosion Test: Why Even Do It? 

Galvanic corrosion is basically electrochemical decay that occurs when an alloy is in the presence of an electrolyte, like water or moisture in the air.

Under such circumstances, the alloy corrodes at a much accelerated rate than it would do on its own.

This is quite alarming, especially in industries combining structurally and functionally different metals, like aerospace, marine, or automotive industries.

The effects of galvanic corrosion are safety risks, breakdowns of expensive machines, and unnecessary delays, which is why these tests are more of an obligation than an option.

How Do Accelerated Galvanic Corrosion Tests Work?

Accelerated galvanic corrosion tests recreate actual corrosive situations, but under strict laboratory conditions.

With this test, manufacturers and engineers can observe the aging process of material combinations exposed to different sets of factors, intensified and accelerated within the laboratory environment.

This test is instrumental in pinpointing weaker areas at the earliest stage of the product development lifecycle, which in turn provides the producers with the room either to swap out the incompatible materials with new ones or to apply the protective coatings and bring in design changes, lessening the chances of runaway failures in the field.

Corrosion Testing and Solutions, LLC, provides suitably tailored comprehensive testing techniques that’ll make it easier for clients to understand and plan material performance in different scenarios under corrosion pressure.

In the case of fields like aviation or construction, the information obtained from tests such as the accelerated galvanic corrosion test becomes more of a necessity, as not only the functionality of the system, but public safety is at risk from the failure of a single galvanic corrosion-caused element.

Conclusion

Prevention becomes a strategic investment when the costs of corrosion comprise equipment damage, safety hazards, and financial loss.

Through such tests, one can steer clear of risks such as aluminum, carbon fiber galvanic corrosion!

Regardless of whether you are dealing with regular alloys or advanced combinations such as aluminum carbon fiber, it is necessary to know how your materials interact!