What is it about?
Stainless steel (316L) in the as-printed state is susceptible to localized attack at the boundaries of the melt pools.
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Why is it important?
Applications of this material would usually not involve any heat treatment before use, so this susceptibility could lead to corrosion failures of parts made from it.
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This page is a summary of: Unexpected Interface Corrosion and Sensitization Susceptibility in Additively Manufactured Austenitic Stainless Steel, CORROSION, February 2018, NACE International,
DOI: 10.5006/2723.
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