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Anomalous ultrasoni...
Anomalous ultrasonic attenuation in ferritic steels at elevated temperatures
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- Hutchinson, Bevis (author)
- RISE,KIMAB
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- Lundin, Peter (author)
- RISE,KIMAB
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- Lindh-Ulmgren, Eva (author)
- RISE,KIMAB
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- Lévesque, D. (author)
- National Research Council Canada, Canada
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(creator_code:org_t)
- Elsevier B.V. 2016
- 2016
- English.
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In: Ultrasonics. - : Elsevier B.V.. - 0041-624X .- 1874-9968. ; 69, s. 268-272
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- An unexpected peak in attenuation has been observed at ∼800 °C when heating low carbon steels in a laser-ultrasonic instrument. An explanation is given in terms of enhanced crystalline anisotropy with increasing temperature in the bcc ferrite range combined with subsequent transformation to austenite at still higher temperatures. An analysis based on theoretical models of attenuation in the Rayleigh regime is in good agreement with the experimental observations.
Keyword
- Anisotropy
- Attenuation
- Laser-ultrasonics
- Phase transformation
- Steel
- Carbon
- Ferrite
- Ferritic steel
- Phase transitions
- Crystalline anisotropy
- Elevated temperature
- Increasing temperatures
- Laser ultra-sonics
- Rayleigh regime
- Ultrasonic attenuation
- Low carbon steel
Publication and Content Type
- ref (subject category)
- art (subject category)
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