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A Bibliometric and Visualized Overview of Hydrogen Embrittlement from 1997 to 2022

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  • Chilou Zhou

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Yingjie Ren

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Xinrui Yan

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Yiran Zheng

    (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, China)

  • Baoqing Liu

    (Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China)

Abstract

The mechanical properties of materials deteriorate when hydrogen embrittlement (HE) occurs, seriously threatening the reliability and durability of the hydrogen system. Therefore, it is important to summarize the status and development trends of research on HE. This study reviewed 6676 publications concerned with HE from 1997 to 2022 based on the Web of Science Core Collection. VOSviewer was used to conduct the bibliometric analysis and produce visualizations of the publications. The results showed that the number of publications on HE increased after 2007, especially between 2017 and 2019. Japan was the country with the highest numbers of productive authors and citations of publications, and the total number of citations of Japanese publications was 24,589. Kyushu University was the most influential university, and the total number of citations of Kyushu University publications was 7999. Akiyama was the most prolific and influential author, publishing 88 publications with a total of 2565 citations. The USA, South Korea and some European countries are also leading in HE research; these countries have published more than 200 publications. It was also found that the HE publications generally covered five topics: “Hydrogen embrittlement in different materials”, “Effect of hydrogen on mechanical properties of materials”, “Effect of alloying elements or microstructure on hydrogen embrittlement”, “Hydrogen transport”, and “Characteristics and mechanisms of hydrogen related failures”. Research hotspots included “Fracture failure behavior and analysis”, “Microstructure”, “Hydrogen diffusion and transport”, “Mechanical properties”, “Hydrogen resistance”, and so on. These covered the basic methods and purposes of HE research. Finally, the distribution of the main subject categories of the publications was determined, and these categories covered various topics and disciplines. This study establishes valuable reference information for the application and development of HE research and provides a convenient resource to help researchers and scholars understand the development trends and research directions in this field.

Suggested Citation

  • Chilou Zhou & Yingjie Ren & Xinrui Yan & Yiran Zheng & Baoqing Liu, 2022. "A Bibliometric and Visualized Overview of Hydrogen Embrittlement from 1997 to 2022," Energies, MDPI, vol. 15(23), pages 1-22, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9218-:d:994229
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    References listed on IDEAS

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