Stress corrosion cracking of AISI 304 under chromium variation within the standard limits: Failure analysis implementing microcapillary method

نویسندگان

چکیده

• High SCC susceptibility of low Cr alloy despite having sufficient accepted by standard limits. length was highly dependent on content in boiling MgCl 2 solution. Significant dependency electrochemical behaviour to within Considerable correlation between the synergistic effect tensile straining and susceptibility. Less sensitivity passive layer breakdown Cl - concentrations. Secondary intergranular cracks were observed fracture surface for case. This study focuses failure analysis an industrial part made AISI 304 that severely ruptured, while another identical operated under service conditions has no sign fracture. Various polarization responses stress corrosion cracking (SCC) compared employing microcapillary method representative samples. The dominant factor identified be chromium (Cr) variation range designations. concentration levels sodium chloride aqueous solution studied both strained unstrained conditions. Results highlighted higher pitting specimens with lower content, indicating a more severe condition at

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ژورنال

عنوان ژورنال: Engineering Failure Analysis

سال: 2022

ISSN: ['1350-6307', '1873-1961']

DOI: https://doi.org/10.1016/j.engfailanal.2022.106797