Assessment of Localized Plastic Deformation during Fatigue in Polycrystalline Copper by Nonlinear Ultrasonic
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive Info| Field | Value | |
| Title |
Assessment of Localized Plastic Deformation during Fatigue
in Polycrystalline Copper by Nonlinear Ultrasonic
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| Creator |
Metya, Avijit
Parida, N Bhattacharya, D K Bandyopadhyay, N R Sagar, S Palit |
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| Subject |
Physical Properties
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| Description |
Nonlinear ultrasonic (NLU) and conventional ultrasonic
techniques have been applied to assess the localized
plastic deformation in polycrystalline copper during
high-cycle fatigue (HCF). The measurement parameter
of NLU, i.e., the NLU parameter, b, has been calculated
from the power spectrum of the filtered and amplified
received signal. For conventional ultrasonic, longitudinal
velocity (Vl) and attenuation coefficients (a) have
been determined. It has been observed that the position
of maximum localized plastic deformation cannot be
detected by Vl and a, whereas b detects the same at the
stage of 30 pct of damage corresponding to the total
fatigue life of the material. The result of NLU has also
been correlated with the hardness during fatigue. This
work reveals the potential of NLU to assess the localized
deformation during fatigue much earlier to the
failure.
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| Publisher |
THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL
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| Date |
2007-12
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/368/1/Metal_Mater_Trans__38A_%282007%29_3087-3092.pdf
Metya, Avijit and Parida, N and Bhattacharya, D K and Bandyopadhyay, N R and Sagar, S Palit (2007) Assessment of Localized Plastic Deformation during Fatigue in Polycrystalline Copper by Nonlinear Ultrasonic. Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 38A (12). pp. 3087-3092. ISSN 1073-5623 |
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| Relation |
http://www.springerlink.com/content/6218274871105447/fulltext.html
http://cgcri.csircentral.net/368/ |
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