Research Output 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
Fingerprint Dive into the research topics where Ulla Ehrnstén is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
- 13 Similar Profiles
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.
Research Output
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
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 Access
File
13
Downloads
(Pure)
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
1
Citation
(Scopus)
Impacts from VTT research on nuclear safety and radioactive waste management
Holt, E. (ed.), Kinnunen, P. (ed.), Sevelev, D. (ed.) & Ehrnstén, U., 2019, VTT Technical Research Centre of Finland. 115 p.Research output: Book/Report › Book (author)
Microstructural characterization of thermally aged Barsebäck RPV head weld metal
Lydman, J., Hytönen, N., Que, Z., Ehrnstén, U. & Nevasmaa, P., 11 Aug 2019, VTT Technical Research Centre of Finland. 36 p. (VTT Research Report; No. VTT-R-01003-19).Research output: Book/Report › Report