Marine atmospheric corrosion of Al-Mg joints by friction stir blind riveting

Research output: Contribution to journalArticlepeer-review

Abstract

This paper investigated the atmospheric corrosion behavior of Al-Mg friction stir blind riveting joints exposed at a severe marine test environment. Besides the severe corrosion that occurred on Mg alloy AZ31B-H23, Al alloy 5754-O also corroded in the coupled region because of the alkaline condition generated by the cathodic reaction inside of the crevice. The highly alkaline environment, however, passivated Mg deep inside the crevice. The corrosion products on Mg were identified as magnesium carbonates and that on Al was mainly gibbsite, which was an unusual corrosion product of Al exposed to atmospheric conditions.

Original languageEnglish (US)
Pages (from-to)793-801
Number of pages9
JournalCorrosion Science
Volume111
DOIs
StatePublished - Oct 1 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 14 - Life Below Water
    SDG 14 Life Below Water

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science

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