Projects per year
Personal profile
Research interests
I am a Principal Scientist at VTT with more than 35 years of experience in nuclear materials. My main expertiese is behaviour of materials in nuclear environments and failure analyses. I am familiar with SEM, EDS, hardness, optical microscopy and other analyses techniques.
Nuclear materials, failure analysis, microstructure, ageing, aging
Ydinvoimalaitosmateriaalit, vauriotutkimus, mikrorakenne, SEM, EDS, vanheneminen
Education/Academic qualification
Manufacturing and processing, Master, Helsinki University of Technology
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Network
Projects
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TAAN: Thermal Aging of Alloy 690 and a high Ni Alloy
Huotilainen, C., Que, Z. & Ehrnstén, U.
1/01/19 → 31/12/19
Project: Other
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INCEFA-PLUS: Increasing safety in NPPs by Covering gaps in Environmental Fatigue Assessment
Huotilainen, C., Seppänen, T., Que, Z., Lydman, J. & Ehrnstén, U.
1/07/15 → 31/10/20
Project: EU project
Research Output
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Effect of thermal ageing at 400 °C on the microstructure of ferrite-austenite interface of nickel-base alloy narrow-gap dissimilar metal weld
Ahonen, M., Mouginot, R., Sarikka, T., Lindqvist, S., Que, Z., Ehrnstén, U., Virkkunen, I. & Hänninen, H., Mar 2020, In: Metals. 10, 3, 421.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Stress corrosion crack initiation testing with tapered specimens in high-temperature water–results of a collaborative research project
Bosch, R. W., Ritter, S., Herbst, M., Kilian, R., Burke, M. G., Duff, J., Scenini, F., Gu, Y., Dinu, A., Ehrnstén, U., Toivonen, A., Novotny, R., Martin, O., Perosanz, F. J., Legat, A. & Zajec, B., 8 Sep 2020, In: Corrosion Engineering Science and Technology. 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Determination of T0 with Miniature C(T) Specimens for a High-Ni Weld Metal used in a Boiling Water Reactor Pressure Vessel
Sirkiä, L., Lydman, J., Ehrnstén, U. & Lindqvist, S., 2019, Baltica XI: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, 10 p.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open AccessFile33 Downloads (Pure) -
Effect of thermal aging on microstructure and hardness of industrial heats of Alloy 690
Huotilainen, C., Ehrnstén, U., Ahonen, M. & Hänninen, H., 2019, 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors. American Nuclear Society (ANS), p. 156-164 9 p.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Electrochemical investigation of in-service thermal aging in two CF8M cast stainless steels
Huotilainen, C., Ivanchenko, M., Efsing, P. & Ehrnsten, U., Jul 2019, In: Journal of Nuclear Materials. 520, p. 34-40 7 p.Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus)