Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Lahdenperä, Kari"'
Autor:
Lahdenperä, Kari
Publikováno v:
Lahdenperä, K 2015, Sizing of fatigue cracks using different eddy current techniques and simulation . VTT Research Report, vol. VTT-R-04115-15, VTT Technical Research Centre of Finland . < https://publications.vtt.fi/julkaisut/muut/2015/VTT-R-04115-15.pdf >
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::7786b6fb24e6b6dff7cbe8c724890faf
https://cris.vtt.fi/en/publications/9810f2f7-a130-4e38-acd6-8978e9d015e8
https://cris.vtt.fi/en/publications/9810f2f7-a130-4e38-acd6-8978e9d015e8
Autor:
Jäppinen, Tarja, Lahdenperä, Kari
Publikováno v:
Jäppinen, T & Lahdenperä, K 2015, Measurements of magnetite piles on steam generator tubing with eddy current techniques . VTT Research Report, vol. VTT-R-00209-15, VTT Technical Research Centre of Finland .
During in-service inspection the steam generator tubes are generally inspected using single probe eddy current techniques. Magnetite deposit built up on the outer surface of the tubes can be detected with the applied techniques. As deposits grow thic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::42b19bceab7f9554bf718312e18188a1
https://cris.vtt.fi/en/publications/41d74909-50be-40d2-ba50-b126dd62e644
https://cris.vtt.fi/en/publications/41d74909-50be-40d2-ba50-b126dd62e644
Autor:
Jäppinen, Tarja, Lahdenperä, Kari
Publikováno v:
Jäppinen, T & Lahdenperä, K 2013, Sizing of magnetite pile on steam generator tubing with two-probe eddy current technique . in 10th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components : JRC-NDE 2013 . EC-JRC, NDT.net, no. 2015-12, 10th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components, Cannes, France, 1/10/13 . < https://www.ndt.net/?id=18505 >
During in-service inspection the steam generator tubes are generally inspected using single probe eddy current techniques. Magnetite deposit built up on the outer surface of the tubes can be detected with the applied techniques. As deposits grow thic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::89405f81172df797740348723fe6073c
https://cris.vtt.fi/en/publications/195b19f1-4565-40e2-a44c-59084b31758a
https://cris.vtt.fi/en/publications/195b19f1-4565-40e2-a44c-59084b31758a
Autor:
Jäppinen, Tarja, Lahdenperä, Kari
Publikováno v:
Jäppinen, T & Lahdenperä, K 2013, Detection of magnetite piles on steam generator tubing with eddy current method . in P Auerkari & J Veivo (eds), Baltica IX. International Conference on Life Management and Maintenance for Power Plants-Abstracts . VTT Technical Research Centre of Finland, Espoo, VTT Technology, no. 107, pp. 88, BALTICA IX-International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 11/06/13 . < https://publications.vtt.fi/pdf/technology/2013/T107.pdf >
Jäppinen, T & Lahdenperä, K 2013, Detection of magnetite piles on steam generator tubing with eddy current method . in P Auerkari & J Veivo (eds), Baltica IX. International Conference on Life Management and Maintenance for Power Plants . VTT Technical Research Centre of Finland, Espoo, VTT Technology, no. 106, pp. 603-610, BALTICA IX-International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 11/06/13 . < https://publications.vtt.fi/pdf/technology/2013/T106.pdf#page=609 >
Jäppinen, T & Lahdenperä, K 2013, Detection of magnetite piles on steam generator tubing with eddy current method . in P Auerkari & J Veivo (eds), Baltica IX. International Conference on Life Management and Maintenance for Power Plants . VTT Technical Research Centre of Finland, Espoo, VTT Technology, no. 106, pp. 603-610, BALTICA IX-International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 11/06/13 . < https://publications.vtt.fi/pdf/technology/2013/T106.pdf#page=609 >
The magnetite deposits and deposit piles on the secondary circuit of the steam generator tubing are detected with eddy current method in in-service inspections. The volume of the detected deposit pile is not evaluated. In many cases the growing defec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2c696045d10205c2d1c874d4b924cf00
https://cris.vtt.fi/en/publications/75eada7d-d278-426d-877b-8c7fd93b18d6
https://cris.vtt.fi/en/publications/75eada7d-d278-426d-877b-8c7fd93b18d6
Publikováno v:
Pitkänen, J, Lipponen, A, Lahdenperä, K & Kiselmann, I 2012, Detection and sizing defects in copper components using eddy current . in Proceedings of the 9th international conference on NDE in relation to structural integrity for nuclear and pressurized components . European Commission EC, 9th international conference on NDE in relation to structural integrity for nuclear and pressurized components, Seattle, Washington, United States, 22/05/12 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::158d48564eb13c7440c71d4104e39e31
https://cris.vtt.fi/en/publications/767231f2-f152-4ab0-9173-6bd55547b637
https://cris.vtt.fi/en/publications/767231f2-f152-4ab0-9173-6bd55547b637
Publikováno v:
Jäppinen, T, Lahdenperä, K & Ala-Kleme, S 2012, Locating magnetite on the steam generator tubes with eddy current . in Proceedings : 18th World Conference on Nondestructive Testing, WCNDT . SAINT (South African Institute for Non-Destructive Testing), 18th World Conference on Non-Destructive Testing, WCNDT, Durban, South Africa, 16/04/12 . < https://www.ndt.net/article/wcndt2012/papers/113_Jappinen.pdf >
The magnetite deposition on the secondary circuit of the steam generator tubing is considered a problem, because is many cases the growing defects are located at the same place as the magnetic deposits. For this reason it is more and more important t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::d80bd7e01d83fe48a09a77cbb5cb5a65
https://cris.vtt.fi/en/publications/6675fc92-00d7-4048-8691-43def700596b
https://cris.vtt.fi/en/publications/6675fc92-00d7-4048-8691-43def700596b
Publikováno v:
Lahdenperä, K, Leskelä, E, Veivo, J & Siljander, A 2012, Experimental study of the sensitivity of the crack detection techniques applicable in the periodic in-service inspections using unpainted and painted test specimen with real fatigue cracks . VTT Research Report, no. VTT-R-10255-10, VTT Technical Research Centre of Finland, Espoo .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::39f5f374afe3753e553f0a0646ffe5e1
https://cris.vtt.fi/en/publications/0ae2bca1-2899-4ba1-9e51-4f820a0b94cf
https://cris.vtt.fi/en/publications/0ae2bca1-2899-4ba1-9e51-4f820a0b94cf
Publikováno v:
Lahdenperä, K, Leskelä, E & Siljander, A 2010, The experimental study of the sensitivity of the crack detection techniques applicable in the periodic in-service inspections using reference specimens . SSM Rapport, no. VTT-R-04012-10, VTT Technical Research Centre of Finland .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::ad9eabf5d64ab7d55798590c8f61f338
https://cris.vtt.fi/en/publications/dfeb85a5-49f7-47ea-a2dc-e57cb5bf8c27
https://cris.vtt.fi/en/publications/dfeb85a5-49f7-47ea-a2dc-e57cb5bf8c27
Publikováno v:
Pitkänen, J, Lipponen, A, Lahdenperä, K & Kiselmann, I 2009, Eddy current inspection for detection of surface and near surface defects in copper components and an electron beam weld . in Developments in Electromagnetic Inspection Methods II . 7th NDE World Conference, Yokohama, Japan, 11/04/09 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::88bf39b24debcebbca1f7b53d6667a3c
https://cris.vtt.fi/en/publications/4f2003d9-0fee-4a2a-99bd-3531f253e5cb
https://cris.vtt.fi/en/publications/4f2003d9-0fee-4a2a-99bd-3531f253e5cb
Autor:
Ruusuvuori, Kimmo, Oksa, Maria, Turunen, Erja, Lahdenperä, Kari, Kauppila, J., van Wonderen, M.
Publikováno v:
Ruusuvuori, K, Oksa, M, Turunen, E, Lahdenperä, K, Kauppila, J & van Wonderen, M 2005, Controlled HVOF hard coating removal method . in Proceedings of the 2005 WJTA American Waterjet Conference ., Paper 5B-2, WJTA WaterJet Technology Association, Houston, Texas . < https://www.wjta.org/images/wjta/Proceedings/Papers/2005/5B-2%20Ruusuvuori.pdf >
There is an increasing demand for recoating of the expensive coated components like turbine blades, rollers and pumps. For economical recoating an efficient coating removal (stripping) method is required. This paper presents the development of the ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::54ba3e6b0aae0b7129bb31fc7d00481b
https://cris.vtt.fi/en/publications/362871cc-a338-424a-9dd4-ac742fbbd2b7
https://cris.vtt.fi/en/publications/362871cc-a338-424a-9dd4-ac742fbbd2b7