Download | - View accepted manuscript: Laser-ultrasonic measurements of residual stresses in a 7075-T651 aluminum sample surface-treated with low plasticity burnishing (PDF, 1.0 MiB)
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DOI | Resolve DOI: https://doi.org/10.1063/1.2184692 |
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Author | Search for: Moreau, A.1; Search for: Man, C.-S. |
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Affiliation | - National Research Council of Canada. NRC Industrial Materials Institute
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Format | Text, Article |
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Conference | Quantitative Nondestructive Evaluation, July 31 - August 5 2005, Brunswick, ME, USA |
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Subject | plasticity; wave mechanics; chemical elements; X-rays; rayleigh waves; laser ultrasonics; residual stress; ultrasound; texture; LPB |
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Abstract | Low-plasticity burnishing (LPB) is used to introduce deep compressive surface residual stresses that improve the durability of parts. A non-destructive measurement of residual stresses, their anisotropy, and distribution as a function of depth is being sought to verify initial process quality and residual stress retention over time. Laser-ultrasonic measurements of Rayleigh wave and surface skimming longitudinal wave (SSLW) velocities were used together to evaluate the magnitudes and directions of the two principal stresses independently of LPB-induced texture variations. The results agree with x-ray measurements at the surface. In addition, it was found that the laser-ultrasonic pulse generation mechanism was surface-process dependent. |
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Publication date | 2006-03-06 |
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Publisher | American Institute of Physics |
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Series | |
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Language | English |
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Peer reviewed | Yes |
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NRC number | CNRC 48837 |
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NPARC number | 15927919 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | 6d610735-b0f2-4de6-b15e-2b1a51035e56 |
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Record created | 2010-08-17 |
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Record modified | 2020-04-22 |
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