A review of the microstructural contributions to the acoustic nonlinearity parameter measured with longitudinal and Rayleigh wave second harmonic generation in metals

Due to their sensitivities to a specimen’s microstructural evolution during processes including heat treatment and plastic deformation, ultrasonic measurements of the acoustic nonlinearity parameter (β) are useful for monitoring microstructural changes and detecting incipient damage in metals. Despite its diagnostic capabilities, the entanglement of different microstructural contributions to the cumulative ultrasonic response renders the interpretation of β a nontrivial task, particularly in the absence of first-hand microstructural characterization. Here, a review of longitudinal and Rayleigh wave second harmonic generation research connecting microstructural features of metals to β is presented, organized by experiments and models of specific features such as dislocations and precipitates. Substantial attention is directed to any available microstructural characterization as it pertains to trends in β. Connections across the literature are discussed extensively, contradictions and anomalous results are highlighted, and commentary on the future directions and challenges of modern second harmonic generation research is dispersed throughout.

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Work Title A review of the microstructural contributions to the acoustic nonlinearity parameter measured with longitudinal and Rayleigh wave second harmonic generation in metals
Access
Penn State
Creators
  1. Colin Williams
  2. Matthew Lear
  3. Parisa Shokouhi
Keyword
  1. Second harmonic generation
  2. Acoustic nonlinearity parameter
  3. Dislocations
  4. Precipitates
  5. Ultrasonic nondestructive evaluation
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. NDT & E International
Publication Date December 30, 2023
Language
  1. English
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.ndteint.2023.103027
Deposited January 08, 2024

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Version 1
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  • Created
  • Updated
  • Added Creator Colin Williams
  • Added Creator Matthew Lear
  • Added Creator Parisa Shokouhi
  • Added Williams et al. - 2024 - A review of the microstructural contributions to t.pdf
  • Updated License Show Changes
    License
    • https://rightsstatements.org/page/InC/1.0/
  • Published
  • Updated Keyword, Publisher, Publication Date Show Changes
    Keyword
    • second harmonic generation, acoustic nonlinearity parameter, dislocations, precipitates , ultrasonic nondestructive evaluation
    • Second harmonic generation, Acoustic nonlinearity parameter, Dislocations, Precipitates , Ultrasonic nondestructive evaluation
    Publisher
    • Elsevier
    • NDT & E International
    Publication Date
    • 2023-12
    • 2023-12-30
  • Updated