In-situ, laser-ultrasonic monitoring of the recrystallization of aluminum alloys

DOIResolve DOI:
AuthorSearch for: ; Search for: ; Search for: ; Search for:
Proceedings titleThermec 2003 International Conference on Processing and Manufacturing of Advanced Materials, Part 1
Series titleMaterials Science Forum; no. Vol. 426-432
ConferenceThermec 2003 International Conference on Processing and Manufacturing of Advanced Materials
Pages483488; # of pages: 6
Subjectaluminum; annealing; laser-ultrasonics; recrystallization; texture; ultrasound
AbstractLaser-ultrasonics is a non-destructive and non-contact technique to generate and detect ultrasound in materials. The measured ultrasonic velocity depends on the orientation distribution of the crystallites and may be used to infer the lowest order texture coefficients. Recrystallization generally involves texture changes and can thus be monitored using ultrasonics. In this paper, cold-rolled samples of an Al-Mg alloy (AA5754) and an Al-Si-Mg-Cu alloy (AA6111) are annealed in a Gleeble thermomechanical simulator at various temperatures. The recrystallization kinetics is monitored in-situ and in real time by laser-ultrasonics. It is found that the longitudinal and shear velocity variations correlate well with the recrystallized fraction, as evaluated by metallography and by the softening behaviour of samples submitted to similar thermal cycles. it is also found that the ultrasonic behaviour is consistent with the randomization of texture and a reduction of the W400 and W420 texture coefficients.
Publication date
PublisherTrans Tech Publications
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273113
Export citationExport as RIS
Report a correctionReport a correction
Record identifier21e25522-6fab-4940-ab96-328dc86438bf
Record created2014-12-15
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)