Micro-pore development phenomenon in hydrogen pre-charged aluminum alloy studied using synchrotron X-ray micro-tomography

C. Gupta, H. Toda, T. Fujioka, M. Kobayashi, K. Uesugi, A. Takeuchi, Y. Suzuki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The paper provides an insight into the development of the micro-pore damage phenomenon during the hydrogen ingress and egress in a high strength aluminum alloy. High resolution micro tomography scans on samples subjected to combinations of cathodic hydrogen charging and de-sorption heat treatment were carried out. The quantitative analysis, spatial mapping, and probabilistic evaluation of the 3D datasets revealed that the development of micro-pore damage during hydrogen ingress-egress had a non-trivial dependence on the particle size distribution. This provides a rationale to mitigate the deleterious effects of hydrogen in aluminum alloys by controlling particle size characteristics.

Original languageEnglish
Article number171902
JournalApplied Physics Letters
Volume103
Issue number17
DOIs
Publication statusPublished - Oct 21 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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