Jyrki Romu

  • Otakaari 4

19932018

Research output per year

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Research Output

2018

Crevice corrosion of stainless steels 904L, 2205 and 2507 in high-temperature sulfuric acid solution containing chlorides: Influence of metal cations

Lindgren, M., Huttunen-Saarivirta, E., Peltola, H., Romu, J., Sarikka, T., Hänninen, H. & Pohjanne, P., Feb 2018, In : Corrosion. 74, 2, p. 225-240

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
5 Citations (Scopus)
191 Downloads (Pure)

Early stage oxidation behavior of Al- and Si-alloyed stainless steels as well as Ni-based alloys in air at elevated temperatures

Romu, J., Sarikka, T., Heikkilä, M., Virkkunen, I. & Hänninen, H., 1 Jun 2018, In : Materials and Corrosion. 69, 6, p. 690-702 13 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
2017
Open Access
File
10 Citations (Scopus)
90 Downloads (Pure)

Käyttövarmuutta kattiloihin uusilla materiaalivaihtoehdoilla

Romu, J., Hänninen, H., Tuurna, S., Mahanen, J. & Puikkonen, T., 1 Jan 2017, In : Hitsaustekniikka. 67, 1, p. 20 - 22 3 p.

Research output: Contribution to journalArticleProfessional

2016

Metallurgical response of weld metal to different filler metal and joint design combinations of laser-arc hybrid welded lean duplex and novel ferritic stainless steels

Karhu, M., Kujanpää, V., Romu, J. & Sarikka, T., May 2016, In : JOURNAL OF LASER APPLICATIONS. 28, 2, 9 p., 022422.

Research output: Contribution to journalArticleScientificpeer-review

Metallurgical response of weld metal to different filler metal and joint design combinations of laser-arc hybrid welded lean duplex and novel ferritic stainless steels

Karhu, M., Kujanpää, V., Romu, J. & Sarikka, T., 2016, 34th International Congress on Applications of Lasers and Electro-Optics (ICALEO2015), Atlanta, October 18 - 22, 2015, GA, USA. p. 465-474

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

2015

Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor

Pohjanne, P., Vepsäläinen, M., Saario, T., Sipilä, K., Romu, J., Saukkonen, T., Hänninen, H., Heikkilä, M., Koskiniemi, J., Berg, C-G., Pulliainen, M., Virtanen, I. & Ohligschläger, T., Jul 2015, In : Corrosion. 71, 7, p. 887-894 8 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Insights into corrosion in dye solar cells

Miettunen, K., Etula, J., Saukkonen, T., Jouttijärvi, S., Halme, J., Romu, J. & Lund, P., Aug 2015, In : Progress in Photovoltaics. 23, 8, p. 1045-1056 12 p.

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
2014

Low Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolyte

Miettunen, K., Jouttijärvi, S., Jiang, R., Saukkonen, T., Romu, J., Halme, J. & Lund, P., 2014, In : Journal of the Electrochemical Society. 161, 3, p. H138-H143 6 p.

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Mechanical and corrosion properties of welded joints in new generation ferritic and duplex stainless steels

Sirén, M., Pohjanne, P., Kujanpää, V., Hirn, J., Romu, J. & Heikkinen, H-P., 2014, In : Materials Science Forum. p. 1003-1008

Research output: Contribution to journalArticleScientificpeer-review

2013

Effect of Alloy Composition and Temperature on Corrosion Behavior of Stainless Steels in Hot Alkaline Solutions

Vepsäläinen, M., Pohjanne, P., Romu, J., Saukkonen, T., Hänninen, H., Heikkilä, M., Ohligschläger, T., Berg, C-G. & Pulliainen, M., 2013, NACE Corrosion Conference & Expo, CORROSION 2013, March 17-21, 2013, Orlando, Florida, USA. p. paper No. 2618, 15 p

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

1 Citation (Scopus)
2012

Effect of Alloy Composition on Stress Corrosion Cracking Susceptibility of Duplex Stainless Steels in Hot Alkaline Sulfide Solution

Leinonen, H., Pohjanne, P., Chasse, K., Singh, P., Romu, J., Saukkonen, T. & Hänninen, H., 2012, NACE Corrosion Conference & Expo, CORROSION 2012, March 11-15, 2012, Salt Lake City, Utah, USA. p. Paper No. C2012-0001746, 21 p

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

1 Citation (Scopus)

New Generation Ferritic and Duplex Stainless Steels: Preliminary Study on Mechanical and In-Service Properties of Base Materials and Welded Joints

Nevasmaa, P., Sirén, M., Karjalainen-Roikonen, P., Hirn, J., Romu, J., Hänninen, H., Sieppi, V., Heikkinen, H-P., Manninen, T. & Säynäjäkangas, J., 2012, 65th Annual Assembly of the International Institute of Welding, July 8-11, 2012, Denver, Colorado, USA. Institute of Welding, I. (ed.). International Institute of Welding, p. 21

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

Selective Dissolution and Stress Corrosion Cracking Susceptibility of Austenitic and Duplex Stainless Steels in Sulfide Containing Alkaline Solutions

Leinonen, H., Pohjanne, P., Romu, J., Saukkonen, T., Schildt, T. & Hänninen, H., 2012, NACE Corrosion Conference & Expo, CORROSION 2012, March 11-15, 2012, Salt Lake City, Utah, USA. p. Paper No. C2012-0001202, 12 p

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

2011

Effect of Selective Dissolution on Stress Corrosion Cracking Susceptibility of Austenitic and Duplex Stainless Steels in Alkaline Solutions

Leinonen, H., Pohjanne, P., Saukkonen, T., Schildt, T., Romu, J. & Hänninen, H., 2011, Nace Corrosion 2011 Conference & Expo, March 13-17, 2011, Houston, Texas, USA. 17 p.

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

5 Citations (Scopus)

Effect of Sodium Sulphide Addition on Selective Dissolution and Stress Corrosion Cracking Susceptibility of Austenitic and Duplex Stainless Steels in Alkaline Solutions

Romu, J., Saukkonen, T., Schildt, T., Hänninen, H., Leinonen, H. & Pohjanne, P., 2011, 7th European Stainless Steel Conference Science and Market, September 21-23, 2011, Como, Italy. AIM-Associazione Italiana di Metallurgia, p. 12

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

2 Citations (Scopus)
2010

Toughness Properties of Ferritic Stainless Steels

Levonmaa, R., Hänninen, H. & Romu, J., 2010, Espoo, p. 49, (Aalto yliopiston teknillisen korkeakoulu, koneenrakennustekniikan laitos; no. TKK-K-1/10).

Research output: Working paperProfessional

2009

Effect of substrate deformation on functional properties of atomic-layer-deposited TiO2 coatings on stainless steel

Straka, L., Kawakami, H., Romu, J., Ilola, R., Mahlberg, R., Heikkilä, M. & Hänninen, H., 1 May 2009, In : Thin Solid Films. 517, 13, p. 3797-3805 9 p.

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Hybridipinnoitteilla lisäarvoa metallituotteille

Mahiout, A., Siivinen, J., Mannila, J., Nikkola, J., Mahlberg, R., Romu, J., Ilola, R., Söderberg, O., Virtanen, J., Pehkonen, A., Niemi, R., Katajarinne, T., Koskinen, J., Kivivuori, S. & Hannula, S-P., 2009, Espoo, (VTT TIEDOTTEITA - RESEARCH NOTES; no. 2517).

Research output: Working paperProfessional

2008

Open-circuit potential as an indicator of damage of atomic layer deposited TiO2 on AISI 304 stainless steel

Straka, L., Yagodzinskyy, Y., Kawakami, H., Romu, J., Ilola, R. & Hänninen, H., 28 Nov 2008, In : Thin Solid Films. 517, 2, p. 641-647 7 p.

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Photocatalytic Activity of Atomic Layer Deposited (ALD) TiO2 Coatings on Austenitic Stainless Steels and Copper Alloys

Ilola, R., Kawakami, H., Straka, L., Papula, S., Romu, J., Hänninen, H., Mahlberg, R. & Heikkilä, M., 2008, Euromat 2007, Nürnberg, Saksa, 10.-13.9.2007.

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

Photocatalytic Activity of Atomic Layer Deposited TiO2 Coatings on Austenitic Stainless Steels and Copper Alloys

Kawakami, H., Ilola, R., Straka, L., Papula, S., Romu, J., Hänninen, H., Mahlberg, R. & Heikkilä, M., 2008, In : Journal of the Electrochemical Society. 155, 2, p. C62-C68 7 p.

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Puhtaat ympäristöystävälliset metallituotteet - Puhteet-projektin loppuraportti

Mahiout, A., Mannila, J., Mahlberg, R., Nikkola, J., Siivinen, J., Romu, J., Ilola, R., Söderberg, O., Kolari, M., Koskinen, J. & Hannula, S-P., 2008, Espoo, (VTT Tiedotteita - Research notes; no. 2400).

Research output: Working paperProfessional

Soil resistant and self-cleaning surfaces of stainless steel with new Sol-gel and ALD coatings

Mahlberg, R., Mannila, J., Romu, J., Nikkola, J., Ilola, R., Söderberg, O., Koskinen, J., Hannula, S-P. & Mahiout, A., 2008, The 6th European Stainless Steel Conference Science and Market 2008. P. Karjalainen & Hertzman, S. (eds.). Jernkontoret, p. 101-108 8 p.

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

Trends in Forming and Welding of Stainless Steels

Hänninen, H. & Romu, J., 2008, 6th European Stainless Steel Conference, June 10-13, Helsinki, Finland. Karjalainen, P. & Hertzman, S. (eds.). Jernkontoret, The Swedish Steel Producers' Association, p. 779-785

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

2006

Comparative Study of Nitrogen and Carbon Effects on Mechanism of Reversion of a´ Martensite to Austenite in Metastable AISI 301 Steel Grades

Yagodzinskyy, Y., Saukkonen, T., Romu, J. & Hänninen, H., 2006, High nitrogen steels HNS 2006, 29-31 August 2006, Jiuzhaigou, Sichuan, China. Dong, H., Su, J. & Speidel, M. (eds.). p. 59-66

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

2005

Copper-carbon Composites

Romu, J., Yagodzinskyy, Y. & Hänninen, H., 2005, Espoo, p. 147, (TKK Raportti MTR; no. 6/05).

Research output: Working paperProfessional

Critical Evaluation of the Effect of Alloyed Nitrogen on the Susceptibility of Stainless Steels to Environmentally Induced Cracking

Petterson, R., Flyg, J., Wessman, S., Herting, G., Ibrahim, N., Fatehi, K., Qvarfot, R., Lo Piccolo, E., Scoppio, L., Ladwein, T., Ligier, V., Coudreuse, L., Matres Serrano, V., Hochölter, G., Kristzt, K., Richter, A., Kivisäkk, U., Leinonen, H., Kinnunen, T., Varis, P. & 6 others, Nöjd, K., Ohligschläger, T., Virkkunen, I., Hänninen, H., Romu, J. & Taulavuori, T., 2005, Luxembourg, p. 137, (European Commission Technical Steel Research, Final Report).

Research output: Working paperProfessional

Effect of Forming Temperature and Cooling Rate on Superplastic Formability and Corrosion Resistance of EN 1.4162 Duplex Stainless Steel

Romu, J., Yagodzinskyy, Y., Papula, S., Beck, W. & Hänninen, H., 2005, 4th European Conference on Superplastic Forming - Euro SPF'05, June 22-24, 2005, Manchester, UK. p. 73-77

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

Mechanical and Electrical Properties of CNT/copper Nanocomposites Processed by Hot Pressing

Yagodzinskyy, Y., Romu, J. & Hänninen, H., 2005, 12th Annular International Conference on Composites/Nano Engineering, Tenerife, Spain, August 1-6, 2005. p. 2

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

2004

Grain refinement processes for superplastic forming of AISI 304 and 304L austenitic stainless steels

Yagodzinskyy, Y., Pimenoff, J., Tarasenko, O., Romu, J., Nenonen, P. & Hänninen, H., Jul 2004, In : Materials Science and Technology. 20, 7, p. 925-929 5 p.

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Grain Refinement Process for Superplastic Forming of AISI 301 and 304L Austenitic Stainless Steels

Yagodzinskyy, Y., Pimenoff, J., Tarasenko, J., Romu, J., Nenonen, P. & Hänninen, H., 2004, In : Materials Science and Technology. 20, p. 925

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Manufacturing of Shaped Forms from Stainless Steels with Superplastic Forming

Romu, J., Yagodzinskyy, Y., Beck, W. & Hänninen, H., 2004, In : Materials Science Forum. 447-448, p. 159-164 6 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Manufacturing of shapes forms from stainless steels with superplastic forming

Romu, J., Yagodzinskyy, Y., Bleck, W. & Hänninen, H., 2004, In : Materials Science Forum. 447-448, p. 159-164

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Nanokiteisen kuparin valmistus, mikrorakenne ja mekaaniset ominaisuudet

Romu, J. & Hänninen, H., 2004, Espoo, p. 77, (TKK Raportti MTR 1/04).

Research output: Working paperProfessional

Nitrogen and Carbon Effects on Mechanisms of Reversion of Martensite to Austenite in Metastable AISI 301 Steel Grades and Their Hot Formability

Yagodzinskyy, Y., Romu, J., Nenonen, P. & Hänninen, H., 2004, 7th International Conference on High Nitrogen Steels, HNS 2004, September 19-22, 2004, Ostend, Belgium. Akdut, N., De Cooman, B. C. & Foct, J. (eds.). p. 103-112

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

Superplastic Forming of LDX 2101 (EN 1.4162) Duplex Stainless Steel

Romu, J., Yagodzinskyy, Y., Beck, W. & Hänninen, H., 2004, EuroSPF 2004, European Conference on SuperPlastic Forming, July 7th - 9th, 2004, Albi, France. p. 45-50

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

2003

Katalyyttipinnat ja niiden valmistus

Ilola, R., Romu, J., Papula, S. & Hänninen, H., 2003, Espoo, p. 49, (TKK Raportti MTR 1/03).

Research output: Working paperProfessional

Pintojen likaantumisen estäminen katalyyttisesti-PLIESKA

Romu, J., Ilola, R., Yagodzinskyy, Y., Papula, S. L. & Carpén, L., 2003, Likaantumattomat pinnat-Teknologiaohjelman seminaari, 21.-22.10.2003, Hanasaari-Ruotsalaissuomalainen kulttuurikeskus, Espoo. p. 15

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

Summary of Recent Research on N-alloying of Steels in Finland

Hänninen, H., Talonen, J., Romu, J., Leinonen, H., Laitinen, A. & Korhonen, M., 2003, International Conference on High Nitrogen Steels HNS 2003, Schaffhausen, Switzerland, 26-28.3.2003. p. 31-42

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

2002

Alumiinin superplastinen muovaus

Romu, J., 2002, Alumiinipäivät 2002, 24. - 25.10. 2002, Sokos Hotel Lahden Seurahuone, Lahti. p. 26

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

Metallien superplastinen muovaus

Pimenoff, J. & Romu, J., 2002, Helsinki, (Tekninen tiedotus, MET-julkaisuja 11/2002).

Research output: Working paperProfessional

Superplasticity and Superplastic Forming in Finland - Recent Advancements and Future Prospects

Pimenoff, J., Romu, J., Yagodzinskyy, Y. & Hänninen, H., 2002, 2nd Joint European Meeting on Superplasticity and Superplastic Forming (Euro-SPF 02), 13th-15th June, 2002, Bristol, Great Britain. p. 8

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

Superplasticity in stainless steels

Romu, J. & Hänninen, H., 2002, Espoo, (TKK Raportti MTR 1/02).

Research output: Working paperProfessional

Superplastinen muovaus

Romu, J., 2002, Levytekniikan teemapäivät, Steel Forum 2002, 10.-11.10.2002, Rantasipi EDEN, Nokia. p. 23

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

2001

Effects of Processing and Manufacturing of High Nitrogen-containing Stainless Steels on their Mechanical, Corrosion and Wear Properties

Hänninen, H., Romu, J., Ilola, R., Tervo, J. & Laitinen, A., 23 Nov 2001, In : Journal of Materials Processing Technology. 117, 3, p. 424-430

Research output: Contribution to journalArticleScientificpeer-review

Effects of the temperature of warm rolling on the superplastic behaviour of AA5083 aluminium base alloy

Pimenoff, J., Yagodzinskyy, Y., Romu, J. & Hänninen, H., Jan 2001, In : Materials Science Forum. 357-359, p. 277-282 6 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Superplastic Forming of Commercial Grade Aluminium and Stainless Steel Sandwich Panels

Pimenoff, J., Yagodzinskyy, Y., Romu, J. & Hänninen, H., 2001, International Congress on Advanced Materials and Processes (Materials Week 2001), 1st-14th October, 2001, Munich, Germany.

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

Superplastisuus kevytrakenteiden valmistuksessa

Romu, J., 2001, Kevyet rakenteet ja materiaalit koneenrakennuksessa - koulutus, 6.-8.2.2001, Tampereen teknillisen korkeakoulun täydennyskeskus Edutech, Tampere. p. 25

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