Roy Johnsen

3.1k total citations
138 papers, 2.5k citations indexed

About

Roy Johnsen is a scholar working on Materials Chemistry, Metals and Alloys and Mechanical Engineering. According to data from OpenAlex, Roy Johnsen has authored 138 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 91 papers in Materials Chemistry, 81 papers in Metals and Alloys and 61 papers in Mechanical Engineering. Recurrent topics in Roy Johnsen's work include Hydrogen embrittlement and corrosion behaviors in metals (81 papers), Corrosion Behavior and Inhibition (66 papers) and Metal and Thin Film Mechanics (18 papers). Roy Johnsen is often cited by papers focused on Hydrogen embrittlement and corrosion behaviors in metals (81 papers), Corrosion Behavior and Inhibition (66 papers) and Metal and Thin Film Mechanics (18 papers). Roy Johnsen collaborates with scholars based in Norway, Germany and Australia. Roy Johnsen's co-authors include Afrooz Barnoush, Vigdis Olden, Christian Thaulow, Einar Bardal, Mariano Iannuzzi, Xu Lu, Masoud Asgari, Dong Wang, N. Espallargаs and Jim Stian Olsen and has published in prestigious journals such as Science, Journal of The Electrochemical Society and Acta Materialia.

In The Last Decade

Roy Johnsen

131 papers receiving 2.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Roy Johnsen Norway 28 1.8k 1.6k 1.1k 699 285 138 2.5k
H.S. Khatak India 25 1.5k 0.8× 1.4k 0.9× 1.2k 1.1× 444 0.6× 344 1.2× 73 2.3k
C. Rodrı́guez Spain 29 1.3k 0.7× 859 0.5× 1.4k 1.3× 979 1.4× 351 1.2× 120 2.4k
H.X. Hu China 19 961 0.5× 452 0.3× 820 0.7× 376 0.5× 185 0.6× 58 1.7k
Shaju K. Albert India 34 1.8k 1.0× 1.2k 0.7× 3.7k 3.4× 1.3k 1.8× 238 0.8× 248 4.3k
Dezhi Zeng China 24 1.0k 0.6× 614 0.4× 752 0.7× 396 0.6× 586 2.1× 144 2.0k
A. Bautista Spain 32 1.9k 1.0× 777 0.5× 710 0.6× 281 0.4× 1.3k 4.5× 108 2.6k
Andraž Legat Slovenia 25 1.1k 0.6× 633 0.4× 534 0.5× 241 0.3× 791 2.8× 86 1.8k
Minxu Lu China 28 1.8k 1.0× 1.6k 1.0× 614 0.6× 137 0.2× 898 3.2× 95 2.2k
D. S. Dunn United States 22 1.1k 0.6× 933 0.6× 413 0.4× 113 0.2× 462 1.6× 101 1.5k
Baojun Dong China 21 1.1k 0.6× 917 0.6× 510 0.5× 136 0.2× 613 2.2× 62 1.5k

Countries citing papers authored by Roy Johnsen

Since Specialization
Citations

This map shows the geographic impact of Roy Johnsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roy Johnsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roy Johnsen more than expected).

Fields of papers citing papers by Roy Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy Johnsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roy Johnsen. The network helps show where Roy Johnsen may publish in the future.

Co-authorship network of co-authors of Roy Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of Roy Johnsen. A scholar is included among the top collaborators of Roy Johnsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roy Johnsen. Roy Johnsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
3.
Lu, Xu, et al.. (2024). Multiscale evaluation of hydrogen-assisted mechanical degradation in grade 2 titanium. Journal of Alloys and Compounds. 983. 173959–173959. 4 indexed citations
4.
Lu, Xu, et al.. (2024). Hydrogen enhanced localised plasticity of single grain α titanium verified by in-situ hydrogen microcantilever bending. International Journal of Hydrogen Energy. 136. 902–913. 5 indexed citations
5.
Lu, Xu & Roy Johnsen. (2024). Hydrogen diffusion and uptake in nickel Alloy 625 under cathodic protection conditions. Heliyon. 10(13). e33924–e33924. 3 indexed citations
6.
Taji, Iman, Tarlan Hajilou, Arne Dugstad, et al.. (2023). Role of cementite morphology on corrosion layer formation of high-strength carbon steels in sweet and sour environments. Corrosion Science. 214. 111031–111031. 19 indexed citations
7.
Taji, Iman, Arne Dugstad, Tarlan Hajilou, et al.. (2023). Evaluation of microstructural and environmental effects on the hydrogen uptake and desorption in high-strength carbon steels: A thermal desorption spectroscopy study. Corrosion Science. 219. 111210–111210. 14 indexed citations
8.
Wang, Dong, et al.. (2023). Investigating electrochemical charging conditions equivalent to hydrogen gas exposure of X65 pipeline steel. Materials and Corrosion. 75(3). 315–321. 19 indexed citations
9.
Lu, Xu, Dong Wang, Di Wan, Xiaofei Guo, & Roy Johnsen. (2022). Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test. Acta Metallurgica Sinica (English Letters). 36(7). 1095–1104. 4 indexed citations
10.
Wang, Dong, et al.. (2022). Investigation of hydrogen embrittlement behavior in X65 pipeline steel under different hydrogen charging conditions. Materials Science and Engineering A. 860. 144262–144262. 50 indexed citations
11.
Lervik, Adrian, John C. Walmsley, Calin D. Marioara, et al.. (2020). Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy. Metals. 10(9). 1194–1194. 5 indexed citations
12.
Johnsen, Roy, et al.. (2019). Effect of Cathodic Polarization on Localized Corrosion of 25Cr in Seawater. 1–15. 1 indexed citations
13.
14.
Iannuzzi, Mariano, et al.. (2018). Effect of Nickel on the Hydrogen Stress Cracking Resistance of Ferritic/Pearlitic Low Alloy Steels. CORROSION. 74(7). 801–818. 12 indexed citations
15.
Iannuzzi, Mariano, Afrooz Barnoush, & Roy Johnsen. (2017). Materials and corrosion trends in offshore and subsea oil and gas production. npj Materials Degradation. 1(1). 115 indexed citations
16.
Johnsen, Roy, et al.. (2017). Hydrogen Sulfide Tube Failure in a Seawater Heat Exchanger. Materials performance. 56(9). 42–45. 1 indexed citations
17.
18.
Johansen, Tonni Franke, et al.. (2010). Using a multi-layered transducer model to estimate the properties of paraffin wax deposited on steel. Ultrasonics. 51(1). 85–93. 5 indexed citations
19.
Olden, Vigdis, Christian Thaulow, Roy Johnsen, & Erling O̸stby. (2007). A Cohesive Zone Modeling Approach to Hydrogen Induced Stress Cracking in 25%Cr Duplex Stainless Steel. 57–65. 2 indexed citations
20.
Gartland, Per Olav, et al.. (1993). Offshore cathodic protection design, inspection, and computer modeling: Innovations from the 1980s. CORROSION. 32(12). 15–21. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by H.S. Khatak Breakdown of academic impact, for papers by C. Rodrı́guez Breakdown of academic impact, for papers by H.X. Hu Breakdown of academic impact, for papers by Shaju K. Albert Breakdown of academic impact, for papers by Dezhi Zeng Breakdown of academic impact, for papers by A. Bautista Breakdown of academic impact, for papers by Andraž Legat Breakdown of academic impact, for papers by Minxu Lu Breakdown of academic impact, for papers by D. S. Dunn Breakdown of academic impact, for papers by Baojun Dong
Rankless by CCL
2026