What was the challenge or problem to solve?
After a first inspection of the defective components, the forensic analysis focused on identifying the cause of the localized perforations in a specific area of the aluminum Al 1070 walls according to DIN EN 573-3 standard.
How was it addressed or what was the solution?
To know the failure mechanism, the damaged areas were analyzed using light and electron microscopy techniques (SEM and EDX) with a Phenom ProX de Thermofischer Scientific.
Thanks to this, the formation of a galvanic pair was found as a possible cause.
Once the main hypothesis of the cause of failure was formulated, accelerated laboratory reproduction tests of the failure were carried out in a climatic chamber.
Challenge
- Need to know the cause that generated perforations in the products
- Obtaining urgent results as they are critical components for the safety of the user of the product
- Proposed solutions to prevent the failure from reoccurring
Solution
- Microscopic inspection and characterization of the composition of the defective components
- Reproduction of the laboratory failure to validate the main hypothesis
- Implementation of short and long-term containment measures with the client
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