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Seppo Tähtinen

  • Phone+358503549037
1981 …2013

Research output per year

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Research Output

1981

Hydrogen effects in austenitic stainless steels

Hänninen, H., Hannula, S-P. & Tähtinen, S., 1981, Proceedings of the 2nd International Conference on the Environmental Degradation of Engineering Materials. Louthan Jr., R. M., McNitt, R. P. & Sisson Jr., R. D. (eds.). Blacksburg: Virginia Polytechnic Institute, p. 347-356

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

4 Citations (Scopus)
1982

Direct x-ray studies of hydrogen-induced phase transformations in stainless steels

Tähtinen, S., Kivilahti, J. & Hänninen, H., 1982, Proceedings of 3rd International Congress on Hydrogen and Materials. Azou, P. (ed.). p. 185-190

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1983

Electrochemical measurements on low-index planes of a Fe-14.5Cr-14.5Ni-2.5No single crystal

Tähtinen, S., Hänninen, H. & Hakkarainen, T., 1983, Passivity of Metals and Semiconductors: Proceedings of the Fifth International Symposium on Passivity. Froment, M. (ed.). Amsterdam: Elsevier, p. 695-700

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1984

Determination of the lattice parameters of c.p. Ti in the temperature range of 25-900 C with MoKα-radiation

Vahvaselkä, S., Tähtinen, S. & Kivilahti, J., 1984, Helsinki: University of Helsinki. 15 p. (University of Helsinki: Department of Physics. Report Series in Physics, Vol. 237).

Research output: Book/ReportReport

Influence of nitrogen alloying on hydrogen embrittlement in AISI 304-type stainless steels

Hannula, S-P., Hänninen, H. & Tähtinen, S., 1984, In : Metallurgical Transactions A: Physical Metallurgy and Materials Science. 15, 12, p. 2205 - 2211 7 p.

Research output: Contribution to journalArticleScientificpeer-review

34 Citations (Scopus)

Metallien korroosio-ominaisuuksien arvioiminen korkealämpötila-pH-potentiaalidiagrammien avulla

Tähtinen, S., 1984. 11 p.

Research output: Contribution to conferenceConference articleProfessional

On the role of anisotropic electrochemical properties in stress corrosion cracking of austenitic stainless steel

Tähtinen, S., Hänninen, H. & Hakkarainen, T., 1984, Stainless steels '84. London, p. 143-148

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Studies on phase transitions and crystallography in hydrogen embrittlement of austenitic stainless steel

Hänninen, H. & Tähtinen, S., 1984. 2 p.

Research output: Contribution to conferenceConference articleScientific

1985

Titaanin ja titaaniseosten korroosio käytetyn polttoaineen loppusijoitusolosuhteissa: kirjallisuusselvitys

Aho-Mantila, I., Hänninen, H., Aaltonen, P. & Tähtinen, S., 1985, Helsinki. 64 p. (Voimayhtiöiden ydinjätetoimikunta YJT; No. 85-08).

Research output: Book/ReportReport

1986

A comparison of HE and SCC sesceptibility of an age hardenable nickelbase alloy

Kekkonen, T., Hänninen, H. & Tähtinen, S., 1986, Proceedings of the 1986 Workshop on advanced high-strength materials. Gennaro, M. & Nelson, J. (eds.). Palo Alto, 19 p. 13. (EPRI Report; No. NP-6363).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Hydrogen-induced phase transformations in a austenitic stainless steel

Tähtinen, S., Hänninen, H. & Nenonen, P., 1986, In : Scripta Metallurgica et Materialia. 20, 1, p. 153-157

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
1987

Hydrogen effects in stainless steels

Tähtinen, S., Nenonen, P. & Hänninen, H., 1987, Environmental Degradation of Engineering Materials III. Louthan, M. R., McNitt, R. P. & Sisson, R. D. (eds.). 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Hydrogen-induced phase transformations in thin specimen of an austenitic stainless steel

Tähtinen, S., Nenonen, P. & Hänninen, H., 1987, Chemistry and physics of fracture. Latanision, R. M. & Jones, R. H. (eds.). Dordrecht: Springer, p. 568-573 (Nato Advanced Study Institutes Series E: Applied Sciences, Vol. 130).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

1988

Tantaali- ja niobiseosten ominaisuudet ja käyttö prosessi- ja kemianteollisuuden laitteissa

Hannula, S-P. & Tähtinen, S., 1988, Espoo: VTT Technical Research Centre of Finland. 64 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 868).

Research output: Book/ReportReport

Uudet polttoaineet NEMO-tutkimusohjelmassa

Tähtinen, S., 1988, Nemo-tutkimusseminaari 7.10.1988, Hvitträsk. Espoo: Helsinki University of Technology, p. 25-34 (NEMO Report, Vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Vetyä joka kotiin

Heikkilä, M. & Tähtinen, S., 1988, In : Tiede 2000. 8, 3, p. 52-55

Research output: Contribution to journalArticleGeneral public

Vetyteknologia

Tähtinen, S., 1988, Espoo: VTT Technical Research Centre of Finland. 102 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 897).

Research output: Book/ReportReport

1989

Hydride heat pump and hydrogen technology

Tähtinen, S. & Tonteri, H., 1989. 4 p.

Research output: Contribution to conferenceConference articleProfessional

Metallihydridien käyttö vedyn ja lämmön varastoinnissa

Tähtinen, S., 1989, Uusi materiaalitekniikka: Materiaalitekniikan seminaari. Espoo: VTT Technical Research Centre of Finland, p. 110-122 (VTT Symposium; No. 99).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1990

Metallihydridien käyttö vedyn varastoinnissa

Tonteri, H., Krogerus, O. & Tähtinen, S., 1990, Espoo: VTT Technical Research Centre of Finland. 54 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 677).

Research output: Book/ReportReport

1991

Vety Saksan liikenteessä

Translated title of the contribution: Hydrogen fuel in GermanyTähtinen, S., 1991, In : NEMO News. 1, p. 4-7

Research output: Contribution to journalArticleProfessional

1992

Hydridilämpövoimakoneet

Translated title of the contribution: Hydride thermodynamic machinesTähtinen, S., 1992, Espoo: VTT Technical Research Centre of Finland. 55 p. (VTT Julkaisuja - Publikationer, Vol. 768).

Research output: Book/ReportReport

Hydridivetyvarasto

Tähtinen, S., 1992, Espoo: VTT Technical Research Centre of Finland. 29 p. (VTT Julkaisuja - Publikationer; No. 769).

Research output: Book/ReportReport

Metallihydridit vetyenergiajärjestelmissä

Tähtinen, S., 1992, Espoo: VTT Technical Research Centre of Finland. 39 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1407).

Research output: Book/ReportReport

Vedyn katalyyttinen palaminen

Tonteri, H. & Tähtinen, S., 1992, Espoo: VTT Technical Research Centre of Finland. 35 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1321).

Research output: Book/ReportReport

1993

Application of a multipotential test method for rapid screening of austenitic stainless steels in process environments

Aaltonen, P., Pohjanne, P., Tähtinen, S. & Hänninen, H., 1993, Application of accelerated corrosion test to service life prediction of materials. Gragnolino, G. & Sridhar, N. (eds.). American Society for Testing and Materials ASTM, p. 325-339

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

In situ measurement of the effect of LiOH on the stability of zircaloy 2 surface film in PWR water

Saario, T. & Tähtinen, S., 1993, Influence of water chemistry on fuel cladding behaviour: Proceedings of a technical committee meeting. Vienna: International Atomic Energy Agency IAEA, p. 207-226 (IAEA Technical Documents; No. IAEA-TECDOC--927).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

In situ measurement of the effect of LiOH on the stability of zircaloy-2 surface film in PWR water

Saario, T. & Tähtinen, S., 1993. 26 p.

Research output: Contribution to conferenceConference articleScientific

On internal friction mechanisms in hydrogen charged stable austenitic stainless steel

Gavriljuk, V., Hänninen, H., Jagodzinski, Y., Tarasenko, A., Tähtinen, S. & Ullakko, K., 1993, In : Scripta Metallurgica et Materialia. 28, 8, p. 901 - 906 6 p.

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Ruostumattomien terästen turvalliset jälkikäsittelymenetelmät

Tähtinen, S., Varis, P., Carpen, L. & Ruusila, J., 1993, Espoo: VTT Technical Research Centre of Finland. (VTT Metallilaboratorio. Tutkimusraportti B; No. 227).

Research output: Book/ReportReport

Stress corrosion cracking of cold worked austenitic stainless steel pipes in BWR reactor water

Tähtinen, S., Hänninen, H. & Trolle, M., 1993, Proceedings of the Sixth International Symposium on Environmental Degradation of Materials in Nuclear Power Systems: Water Reactors. Gold, R. E. & Simonen, E. P. (eds.). Warrendale: Minerals, Metals and Materials Society, TMS, p. 265-275

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

5 Citations (Scopus)
1994

Hydridivetyvarasto ja vedyn varastointikustannukset

Translated title of the contribution: Cost estimation of metal hydride hydrogen storage systemTähtinen, S., 1994, Espoo: VTT Technical Research Centre of Finland. 23 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1584).

Research output: Book/ReportReport

1995

In-situ measurement of the effect of LiOH on the stability of fuel cladding oxide film in simulated PWR primary water environment

Saario, T., Tähtinen, S., Piippo, J. & Kukkonen, J., 1995, Proceedings of the seventh international symposium on environmental degradation of materials in nuclear power systems - water reactors. Airey, G., Andresen, P. & Brown, J. (eds.). Houston, Vol. 2. p. 1231-1246

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

In-situ measurement of the effect of LiOH on the stability of fuel cladding oxide film in simulated PWR primary water environment, Paper no. 400

Saario, T. & Tähtinen, S., 1995, Corrosion '95 The NACE International Annual Conference and Corrosion Show: Papers 351-400. Houston, Vol. 8. 15 p. 400

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Selective dissolution-vacancy-creep model for IGSCC of Alloy 600

Saario, T., Aaltonen, P., Karjalainen-Roikonen, P., Piippo, J., Mäkelä, K., Tähtinen, S. & Hänninen, H., 1995, Seventh International Symposium on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors: Proceedings and symposium discussions. Airey, G., Andresen, P. & Brown, J. (eds.). Houston, p. 841-854

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Development of explosion welding (EXW) technique and characterisation of EXW joints

Tähtinen, S., Ehrnsten, U., Karjalainen-Roikonen, P., Moilanen, P., Kauppinen, P., Auerkari, P. & Rahka, K., 1997, Espoo: VTT Technical Research Centre of Finland. 30 p. (Liekki 2: Poltto- ja kaasutustekniikan tutkimusohjelma; No. VALB-220).

Research output: Book/ReportReport

Effect of lithium hydroxide on stability of fuel cladding oxide film in simulated pressurized water reactor primary water environments

Saario, T., Tähtinen, S. & Piippo, J., 1997, In : Corrosion. 53, 9, p. 724 - 729 6 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Environmentally assisted cracking of alloy 600 in PWR primary water

Ehrnsten, U., Lagerström, J., Saario, T., Piippo, J., Aaltonen, P., Tähtinen, S., Laitinen, T. & Hänninen, H., 1997, Corrosion-deformation interactions CDI '96: Second International Conference on Corrosion-Deformation Interactions in conjunction with EUROCORR '96, Nice, France, 1996. Magnin, T. (ed.). p. 463-472 (European Federation of Corrosion Publications; No. 21).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Metallurgy of explosion welded copper-stainless steel joints

Tähtinen, S., Ehrnsten, U., Kiiski, A. & Auerkari, P., 1997, Proceedings of the 8th International Conference on the Joining of Materials, Helsingor, Denmark.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

NDE of explosion welded copper stainless steel first wall mock-up

Tähtinen, S., Kauppinen, P., Jeskanen, H., Lahdenperä, K. & Ehrnsten, U., 1997, VTT Technical Research Centre of Finland. 18 p. (Liekki 2: Poltto- ja kaasutustekniikan tutkimusohjelma; No. VALB-221).

Research output: Book/ReportReport

The feasibility of small size specimens for testing of environmentally assisted cracking of irradiated materials and of materials under irradiation in reactor core

Toivonen, A., Moilanen, P., Pyykkönen, M., Tähtinen, S., Rintamaa, R. & Saario, T., 1997, 23. MPA seminar: Safety and reliability of plant technology with special emphasis on nuclear technology. Stuttgart: Materials Testing Institute University of Stuttgart MPA, Vol. 1. 9 p. 17

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1998

Development of dielectric window to conductor assembly

Heikinheimo, L., Nuutinen, S. & Tähtinen, S., 1998, VTT Technical Research Centre of Finland. 41 p. (VALB; No. 294).

Research output: Book/ReportReport

Effect of neutron irradiation on fracture toughness behaviour of copper alloys

Tähtinen, S., Pyykkönen, M., Karjalainen-Roikonen, P., Singh, B. & Toft, P., 1998, In : Journal of Nuclear Materials. 258-263, Part 1, p. 1010-1014

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Effect of specimen type and size on fracture resistance curve determination of CuCrZr alloy

Karjalainen-Roikonen, P., Pyykkönen, M. & Tähtinen, S., 1998, In : Journal of Nuclear Materials. 258-263, Part 1, p. 462-465

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

FFUSION research programme 1993 1998: Final report of the Finnish fusion research programme

Karttunen, S., Ahola, H., Dumbrajs, O., Halme, A., Heikkinen, J., Heikkinen, V., Keinonen, J., Korhonen, R., Kurki-Suonio, T., Likonen, J., Pättikangas, T., Salomaa, R., Siuko, M., Teuho, J., Tähtinen, S. & Wasastjerna, F., 1998, Espoo: VTT Technical Research Centre of Finland. 158 p. (VTT Publications; No. 368).

Research output: Book/ReportReport

Open Access

Non destructive examination of primary wall small scale mock-up DS-1F

Jeskanen, H., Lahdenperä, K., Kauppinen, P. & Tähtinen, S., 1998, VTT Technical Research Centre of Finland. 34 p. (VALB, Vol. 280).

Research output: Book/ReportReport

The Fracture resistance of bimaterial copper-stainless steel interfaces with three-point bend configuration

Laukkanen, A., Karjalainen-Roikonen, P., Moilanen, P. & Tähtinen, S., 1998, Proceedings of the 12th Bienniel Conference on Fracture,  ECF12. Brown, M. W., de los Rios, E. R. & Miller, K. J. (eds.). Vol. 2. p. 775 - 780

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review