Ulla Ehrnstén

Principle Scientist

Principal Scientist, BA2F04 Nuclear reactor materials

Phone+358405354057

Research output per year

If you made any changes in Pure these will be visible here soon.

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.

1 Active
2 Finished

INCEFA-SCALE: INcreasing safety in NPPs by Covering gaps in Environmental Fatigue Assessment - focusing on gaps between laboratory data and component SCALE
Huotilainen, C., Seppänen, T., Que, Z., Ehrnstén, U. & Lydman, J.
1/10/20 → 30/09/25
Project: EU project
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
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

80 Conference article in proceedings
23 Report
23 Article
17 Conference article
More

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 Access
File

33 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
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)