The generation of deformation damage during fatigue loading in Al-Cu alloy studied by the Doppler Broadening technique

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Abstract

We have investigated the evolution of damage during fatigue loading in Al-Cu 2024-T3 alloys using the positron annihilation Doppler Broadening (DB) technique. This technique enables us to monitor in a non destructive way, at the atomic and vacancy level, the formation of deformation defects and their interaction with solute atoms at selected stages of fatigue testing. The changes in the S and W Doppler Broadening parameters are linked to the changes in fatigue behavior at lower stress levels. The material was tested under constant amplitude fatigue loading at four different stress levels and DB tests were conducted at selected stages of fatigue lifetime. The results are compared to those obtained during static tensile tests.
Original languageEnglish
Title of host publication12th International Workshop on Slow Positron Beam Techniques SLOPOS 12
EditorsS Buckman
Place of PublicationMagnetic Island, N.Queensland, Australia
PublisherARC Centre of Excellence for Antimatter-Matter Studies
Pages1-4
Number of pages4
DOIs
Publication statusPublished - 2010
Event12th International Workshop on Slow Positron Beam Techniques - Magnetic Island, Australia
Duration: 1 Aug 20106 Aug 2010
Conference number: 12

Publication series

NameJournal of Physics Conference Series
Volume262 (2011)

Conference

Conference12th International Workshop on Slow Positron Beam Techniques
Abbreviated titleSLOPOS 12
CountryAustralia
CityMagnetic Island
Period1/08/106/08/10

Keywords

  • Conf.proc. > 3 pag

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