JOURNAL ARTICLE

In-situ visualization of hydrogen atom distribution at micro-indentation in a carbon steel by scanning Kelvin probe force microscopy.

  • Published In: Corrosion Reviews, 2023, v. 41, n. 4. P. 473 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Li, Yuan; Cheng, Yufeng Frank 3 of 3

Abstract

In this work, a scanning Kelvin probe force microscope was used to in-situ visualize distribution of hydrogen atoms at micro-indentation and metallurgical phases contained in a carbon steel. Topographic profiles and Volta potentials of the steel upon various times of hydrogen-charging were measured. The hydrogen atom distribution at the micro-indentation was analyzed. Results demonstrate that the micro-indentation can serve as a preferential site to accumulate hydrogen atoms. Particularly, the vertex of the indention shows the greatest hydrogen atom enrichment, while the indentation bottom possesses a slightly lower hydrogen atom concentration. More hydrogen atoms accumulate in ferrite than in pearlite in the steel. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:Corrosion Reviews. 2023/08, Vol. 41, Issue 4, p473
  • Document Type:Article
  • Subject Area:Science
  • Publication Date:2023
  • ISSN:03346005
  • DOI:10.1515/corrrev-2022-0108
  • Accession Number:169728943
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