Bibliometric Analysis of Steelmaking Slag-Related Studies for Research Trends and Future Directions

Although steel slag has been used over the past years, the data-based evidence cannot even be found to indicate the development of steel slag-related technologies. To clarify the leading regions, reveal the research trends, and propose future research directions, a bibliometric and visualization analysis was conducted based on the Web of Science (WOS) core databases. China, the USA, and Italy are the top three eminent countries, and the institution of Tsinghua University and Wuhan University of Technology tied for the first place with an H-index of 27. The research focus of steel slag has changed from mechanical properties, such as durability and strength, to functional applications, pretreatment technology, carbon sequestration, and environment-friendly products. Finally, several research directions were proposed for future investigation. This was the first time steel slag was investigated from a bibliometric perspective. The information obtained could provide scholars with the current recycling situation and the following academic steps.