Turk, Andrej and San Martín, David and Rivera-Díaz-del-Castillo, Pedro E.J. and Galindo-Nava, Enrique I. (2018) Correlation between vanadium carbide size and hydrogen trapping in ferritic steel. Scripta Materialia, 152. pp. 112-116. ISSN 1359-6462
Full text not available from this repository.Abstract
Hydrogen 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.