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Title: The effect of hydrogen embrittlement on the localized plastic deformation of aluminum alloy

The effect of hydrogen embrittlement on the localized plastic deformation of aluminum alloy D1 was investigated. The studies were performed for the test samples of aluminum alloy subjected to electrolytic hydrogenation. It is found that the mechanical properties and localized plastic deformation parameters of aluminum alloy are affected adversely by hydrogen embrittlement. The hydrogenated counterpart of alloy has a lower degree of ductility relative to the original alloy; however, the plastic flow behavior of material remains virtually unaffected. Using scanning electron and atomic force microscopy methods, the changes in the fracture surface were investigated. The deformation diagrams were examined for the deformed samples of aluminum alloy. These are found to show all the plastic flow stages: the linear, parabolic and pre-failure stages would occur for the respective values of the exponent n from the Ludwik-Holomon equation. Using digital speckle image technique, the local strain patterns were being registered for the original alloy D1 and the counterpart subjected to electrolytic hydrogenation for 100 h.
Authors:
;  [1] ;  [2] ;  [1] ;  [2] ;  [2] ;  [1] ;  [1] ;  [3] ;  [1] ;  [2]
  1. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
  2. (Russian Federation)
  3. (National Research Nuclear University MEPhI), Seversk, 636036 (Russian Federation)
Publication Date:
OSTI Identifier:
22492514
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1683; Journal Issue: 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; ATOMIC FORCE MICROSCOPY; DEFORMATION; DIAGRAMS; DUCTILITY; ELECTRON SCANNING; EQUATIONS; FRACTURES; HYDROGEN EMBRITTLEMENT; HYDROGENATION; IMAGES; PLASTICITY; STRAINS; SURFACES