Abstract
Closed stress corrosion cracks (SCCs) have been generated in nuclear power plants, resulting in the underestimationand nondetection. To solve this problem, we have developed closed-crack imaging method, the subharmonic phased array forcrack evaluation (SPACE), on the basis of subharmonic waves and phased array technique. Here, after verifying the SPACE in a realistic SCC specimen, we present a two-step method for forming deep closed SCC for a reasonable amount of time. The SCC closure was verified by SPACE. This significantly contributes to the improvement of nondestructive evaluation methods and training/educating of inspection engineers.
| Original language | English |
|---|---|
| Title of host publication | Nonlinear Acoustics |
| Subtitle of host publication | State-of-the-Art and Perspectives, ISNA 2012 - 19th International Symposium on Nonlinear Acoustics |
| Pages | 183-186 |
| Number of pages | 4 |
| Edition | 1 |
| DOIs | |
| Publication status | Published - 2012 May 1 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Number | 1 |
| Volume | 1474 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Keywords
- Closed stress corrosion cracks
- Imaging
- Phased array.
- Subharmonic waves
ASJC Scopus subject areas
- Physics and Astronomy(all)
Fingerprint Dive into the research topics of 'Formation and evaluation of closed stress corrosion cracks in ni-based alloy weld metal for nuclear power plants'. Together they form a unique fingerprint.
Cite this
Ohara, Y., Shintaku, Y., Horinouchi, S., & Yamanak, K. (2012). Formation and evaluation of closed stress corrosion cracks in ni-based alloy weld metal for nuclear power plants. In Nonlinear Acoustics: State-of-the-Art and Perspectives, ISNA 2012 - 19th International Symposium on Nonlinear Acoustics (1 ed., pp. 183-186). (AIP Conference Proceedings; Vol. 1474, No. 1). https://doi.org/10.1063/1.4749327