Monitoring microstructure evolution of nickel at high temperature

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DOIResolve DOI: http://doi.org/10.1063/1.1472973
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TypeArticle
Proceedings titleReview of Progress in Quantitative Nondestructive Evaluation: Volume 21
Series titleAIP Conference Proceedings; no. Vol. 615
ConferenceReview of Progress in Quantitative Nondestructive, July 29-August 3 2001, Brunswick ME, USA
ISSN0094-243X
Pages15181525; # of pages: 8
Subjectnondestructive testing; ultrasonic testing photoacoustic testing; metals semimetals and alloys; other ferromagnetic metals and alloys
AbstractLaser ultrasonics is used to monitor the microstructure evolution of commercial pure nickel from room temperature up to 1000 °C. The objective is to characterize the response of ultrasonic velocity, attenuation and absorption to recovery/recrystallization and grain growth. These parameters are measured during the applied thermal cycle and for different magnetic fields. Below the Curie temperature, the annealed microstructure shows strong magnetoelastic effects. Above the Curie temperature, the ultrasonic attenuation is dominated by grain scattering, allowing the characterization of grain growth. A relationship between the grain size and attenuation at high temperatures is established.
Publication date
PublisherAmerican Institute of Physics
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21273120
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Record identifierbb625ee6-a99a-4b89-9e59-6b3ee5794e54
Record created2014-12-16
Record modified2016-05-09
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