The effect of reversion heat treatment on the degree of sensitisation for aluminium alloy AA5083

R. Zhang, Y. Zhang, Y. Yan, S. Thomas, C. H. J. Davies, N. Birbilis

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18 Citations (Scopus)

Abstract

A detailed study of reversion heat treatment on a naturally sensitised field retrieved AA5083 (Al-Mg-Mn) sample was carried out. The reversion temperatures studied were between 150 and 240 °C, which span the β-phase (Mg2Al3) transformation temperature. The degree of sensitisation (DoS) prior to and after reversion was investigated via the nitric acid mass loss test (NAMLT); revealing the effect of reversion heat treatment was principally dictated by reversion temperature. The DoS of reversion treated samples was correlated to the grain boundary β-phase continuity, as assessed by quantitative electron microscopy herein.

Original languageEnglish
Pages (from-to)324-333
Number of pages10
JournalCorrosion Science
Volume126
DOIs
Publication statusPublished - 1 Sep 2017

Keywords

  • A. Alloy
  • A. Aluminium
  • B. SEM
  • B. STEM
  • C. Intergranular corrosion

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