Hydrogen Re-Embrittlement of Aerospace grade High Strength Steels
Journal Title: Frattura ed Integrità Strutturale - Year 2012, Vol 6, Issue 21
Abstract
Hydrogen Re-Embrittlement on anodically coated high strength steels is a relevant risk for aerospace structures due to the possibility of hydrogen uptake during the operative life of the components. AISI 4340 and Maraging 250 unnotched tensile specimens were subjected to SSRT in order to evaluate the influence of test environment on time to failure. Fracture surfaces were examined by SEM analysis to evaluate the degree of embrittlement and to correlate it with hydrogen diffusivity of the tested steels.
Authors and Affiliations
Renzo Valentini, C. Colombo, M. De Sanctis, G. Lovicu
Keywords
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- EP ID EP114271
- DOI 10.3221/IGF-ESIS.21.04
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