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Other IDs

SciProfiles: 2075355

Countries

Norway

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Employment (4)

NTNU Fakultet for ingeniorvitenskap og teknologi Trondheim: Trondheim, NO

2004-01-01 to present | Professor (IPM)
Employment
Source: Self-asserted source
Roy Johnsen

Qatar Petroleum: Doha, Ad Dawhah, QA

2012-01-01 to 2012-12-31 | Chief Reseracher (TRD)
Employment
Source: Self-asserted source
Roy Johnsen

CORROCEAN: Trondheim, NO

1991-06-01 to 2003-12-31 | Director (Engineering and R&D)
Employment
Source: Self-asserted source
Roy Johnsen

Statoil Research Centre: Trondheim, NO

1985-06-01 to 1991-06-01 | Department Manager (Material technology)
Employment
Source: Self-asserted source
Roy Johnsen

Education and qualifications (1)

NTNU Fakultet for ingeniorvitenskap og teknologi Trondheim: Trondheim, NO

1981-05-01 to 1985-06-01 | PhD (IPM)
Education
Source: Self-asserted source
Roy Johnsen

Funding (1)

Hydrogen induced stress cracking of duplex stainless steel

2006-05 to 2010-12 | Grant
Norwegian Research Council (Oslo, NO)
Source: Self-asserted source
Roy Johnsen

Works (20)

Investigating electrochemical charging conditions equivalent to hydrogen gas exposure of X65 pipeline steel

Materials and Corrosion
2024-03 | Journal article
DOI: 10.1002/maco.202313931
Contributors: Erik Koren; Catalina M. H. Hagen; Dong Wang; Xu Lu; Roy Johnsen
Source: check_circle
Crossref

Unravelling the effect of F phase on hydrogen-assisted intergranular cracking in nickel-based Alloy 725: Experimental and DFT study

Corrosion Science
2023-12 | Journal article
DOI: 10.1016/j.corsci.2023.111569
Contributors: Xu Lu; Yan Ma; Yuan Ma; Dong Wang; Lei Gao; Wenwen Song; Lijie Qiao; Roy Johnsen
Source: check_circle
Crossref

Evaluation of microstructural and environmental effects on the hydrogen uptake and desorption in high-strength carbon steels: A thermal desorption spectroscopy study

Corrosion Science
2023-07 | Journal article
DOI: 10.1016/j.corsci.2023.111210
Contributors: Shabnam Karimi; Iman Taji; Simona Palencsár; Arne Dugstad; Tarlan Hajilou; Afrooz Barnoush; Kim Verbeken; Roy Johnsen; Tom Depover
Source: check_circle
Crossref

In situ nanomechanical characterization of hydrogen effects on nickel-based alloy 725 under different metallurgical conditions

Journal of Materials Science & Technology
2023-02 | Journal article
DOI: 10.1016/j.jmst.2022.07.006
Contributors: Xu Lu; Yan Ma; Ding Peng; Roy Johnsen; Dong Wang
Source: check_circle
Crossref

Investigation of hydrogen embrittlement behavior in X65 pipeline steel under different hydrogen charging conditions

Materials Science and Engineering: A
2022-12 | Journal article
DOI: 10.1016/j.msea.2022.144262
Contributors: D. Wang; A.B. Hagen; P.U. Fathi; M. Lin; R. Johnsen; X. Lu
Source: check_circle
Crossref

Evaluation of hydrogen diffusion and trapping in nickel Alloy 625 by thermal desorption spectroscopy

International Journal of Hydrogen Energy
2022-08 | Journal article
DOI: 10.1016/j.ijhydene.2022.07.094
Contributors: Xu Lu; Tom Depover; Roy Johnsen
Source: check_circle
Crossref

Hydrogen diffusion and trapping in nickel-based alloy 625: An electrochemical permeation study

Electrochimica Acta
2022-07 | Journal article
DOI: 10.1016/j.electacta.2022.140477
Contributors: Xu Lu; Dong Wang; Roy Johnsen
Source: check_circle
Crossref

Evaluation of the cementite morphology influence on the hydrogen induced crack nucleation and propagation path in carbon steels

International Journal of Hydrogen Energy
2022-04 | Journal article
DOI: 10.1016/j.ijhydene.2022.01.222
Contributors: Shabnam Karimi; Iman Taji; Tarlan Hajilou; Afrooz Barnoush; Roy Johnsen
Source: check_circle
Crossref

Hydrogen uptake and diffusivity in steel armor wires with different chemical composition, carbide distribution, grain size, and degree of deformation

Materials and Corrosion
2022-03 | Journal article
DOI: 10.1002/maco.202112615
Contributors: Ellen S. Skilbred; Mariano Kappes; Mariano Iannuzzi; Roy Johnsen
Source: check_circle
Crossref

Corrosion and Microstructural Investigation on Additively Manufactured 316L Stainless Steel: Experimental and Statistical Approach

Materials
2022-02-21 | Journal article
DOI: 10.3390/ma15041605
Contributors: Héctor Maicas-Esteve; Iman Taji; Marc Wilms; Yaiza Gonzalez-Garcia; Roy Johnsen
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Effect of hydrogen on the embrittlement susceptibility of Fe–22Mn-0.6C TWIP steel revealed by in-situ tensile tests

Materials Science and Engineering: A
2021-01 | Journal article
DOI: 10.1016/j.msea.2020.140638
Contributors: Dong Wang; Xu Lu; Di Wan; Xiaofei Guo; Roy Johnsen
Source: check_circle
Crossref

Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy

Metals
2020-09-07 | Journal article
DOI: 10.3390/met10091194
Contributors: Adrian Lervik; John C. Walmsley; Lars Lodgaard; Calin D. Marioara; Roy Johnsen; Otto Lunder; Randi Holmestad
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

The Role of Tungsten on the Phase Transformation Kinetics and its Correlation with the Localized Corrosion Resistance of 25Cr Super Duplex Stainless Steels

Journal of The Electrochemical Society
2020-01-05 | Journal article
DOI: 10.1149/1945-7111/ab90af
Contributors: Cristian Torres; María Sofía Hazarabedian; Zakaria Quadir; Roy Johnsen; Mariano Iannuzzi
Source: check_circle
Crossref

Properties of TSA in natural seawater at ambient and elevated temperature

Materials and Corrosion
2019-02 | Journal article
DOI: 10.1002/maco.201810385
Contributors: Havard Wilson; Roy Johnsen; Cristian T. Rodriguez; Sven M. Hesjevik
Source: check_circle
Crossref

Environmentally assisted degradation of spinodal copper alloy C72900

Corrosion Science
2018-09 | Journal article
DOI: 10.1016/j.corsci.2018.06.031
Contributors: Roy Johnsen; Torstein Lange; Gaute Stenerud; Jim Stian Olsen
Source: check_circle
Crossref

Hydrogen stress cracking and crack initiation in precipitation hardened Ni-alloys

Engineering Failure Analysis
2018-07 | Journal article
DOI: 10.1016/j.engfailanal.2018.02.023
Contributors: Gaute Stenerud; Roy Johnsen; Jim Stian Olsen
Source: check_circle
Crossref

Effect of different microstructural features on the hydrogen embrittlement susceptibility of alloy 718

International Journal of Hydrogen Energy
2018-03 | Journal article
DOI: 10.1016/j.ijhydene.2018.02.088
Contributors: Gaute Stenerud; Sigurd Wenner; Jim Stian Olsen; Roy Johnsen
Source: check_circle
Crossref

Effect of nickel on hydrogen permeation in ferritic/pearlitic low alloy steels

International Journal of Hydrogen Energy
2018-02 | Journal article
DOI: 10.1016/j.ijhydene.2017.12.174
Contributors: Hans Husby; Mariano Iannuzzi; Roy Johnsen; Mariano Kappes; Afrooz Barnoush
Source: check_circle
Crossref

Materials and corrosion trends in offshore and subsea oil and gas production

npj Materials Degradation
2017-07-25 | Journal article
DOI: 10.1038/s41529-017-0003-4
Contributors: Mariano Iannuzzi; Afrooz Barnoush; Roy Johnsen
Source: check_circle
Crossref

Effect of hydrogen on the hardness of different phases in super duplex stainless steel

International Journal of Hydrogen Energy
2016-01 | Journal article
DOI: 10.1016/j.ijhydene.2015.10.106
Contributors: Nousha Kheradmand; Roy Johnsen; Jim Stian Olsen; Afrooz Barnoush
Source: check_circle
Crossref

Peer review (1 review for 1 publication/grant)

Review activity for International journal of hydrogen energy. (1)
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