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Título

Correlation between vanadium carbide size and hydrogen trapping in ferritic steel

AutorTurk, A.; San-Martín, David CSIC ORCID ; Rivera-Díaz-del-Castillo, P.E.J.; Galindo-Nava, Enrique
Palabras claveThermal desorption analysis
Microstructure
Ferritic steels
Hydrogen diffusion
Carbides
Fecha de publicación2018
EditorElsevier
CitaciónScripta Materialia 152: 112-116 (2018)
ResumenHydrogen trapping on vanadium carbides (VC) was studied in a low-carbon ferritic steel. Thermal desorption analysis was performed on two conditions with different carbide sizes but identical volume fractions. Smaller carbides with a higher effective surface area trapped significantly more hydrogen. A correlation between carbide size and hydrogen trap density was established, suggesting that trapping is surface-dominant and a scaling law for trap density was derived. The amount of trapped hydrogen was overall much lower than previously reported for VC-containing martensitic steels. It is therefore suggested that in the absence of a dislocated matrix VC traps relatively little hydrogen.
Versión del editorhttps://doi.org/10.1016/j.scriptamat.2018.04.013
URIhttp://hdl.handle.net/10261/172798
DOI10.1016/j.scriptamat.2018.04.013
Identificadoresdoi: 10.1016/j.scriptamat.2018.04.013
issn: 1359-6462
Aparece en las colecciones: (CENIM) Artículos




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