Hydrogen induced strain localization in Al-Zn-Mg-Cu aluminum alloys

Hang Su, Hiroyuki Toda, Ryohei Masunaga, Kentaro Uesugi, Akihisa Takeuchi, Yoshio Watanabe

Research output: Contribution to conferencePaper

Abstract

It has been well documented that solute hydrogen atoms increase the mobility of dislocations in metals and alloys, thus promoting highly localized deformation which eventually leads to the rupture of a material. However, little is known about the mechanism of hydrogen-enhanced dislocation mobility that influences the macroscopic fracture process. In this paper, the high resolution X-ray tomography is used to clarify the influence of hydrogen on the initiation and propagation of quasi cleavage fracture in Al-Zn-Mg-Cu alloys. The initiation and propagation of the quasi cleavage crack are discussed by measuring 3D strain distribution ahead of a crack tip in terms of hydrogen embrittlement models.

Original languageEnglish
Pages710-711
Number of pages2
Publication statusPublished - Jan 1 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: Jun 18 2017Jun 20 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
CountryGreece
CityRhodes
Period6/18/176/20/17

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

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