In the present work, acoustic emission testing (AE) technique was successfully applied to identify damage phenomena occurred during stress corrosion cracking (SCC) in chloride-containingenvironment of a precipitation hardening martensitic stainless steel. Through the use of multivariable statistical analysis [by coupling principal component analysis (PCA) and self-organisingmap (SOM)], the different stages of SCC mechanisms (i.e. activation, growth and propagation of cracks) have been identified and analysed. In particular each mechanism was related to specific and significant AE patterns allowing its univocal recognition.

SCC damage evolution on martensitic stainless steel by using acoustic emission technique

BONACCORSI, Lucio Maria;
2015

Abstract

In the present work, acoustic emission testing (AE) technique was successfully applied to identify damage phenomena occurred during stress corrosion cracking (SCC) in chloride-containingenvironment of a precipitation hardening martensitic stainless steel. Through the use of multivariable statistical analysis [by coupling principal component analysis (PCA) and self-organisingmap (SOM)], the different stages of SCC mechanisms (i.e. activation, growth and propagation of cracks) have been identified and analysed. In particular each mechanism was related to specific and significant AE patterns allowing its univocal recognition.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12318/6739
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