Hydrogen trapping at dislocations, carbides, copper precipitates and grain boundaries in a dual precipitating low-carbon martensitic steel
Journal
Scripta Materialia
Journal Volume
221
Date Issued
2022-12-01
Author(s)
Abstract
By using atom probe tomography to detect deuterium in a dual precipitating low carbon martensitic steel we provide insight into the relationship between hydrogen (H), carbon, and microstructural features. TiC and Cu precipitates were found to provide H trapping sites, however, dislocations without C were not observed to trap H. The order of trapping from highest to lowest concentrations of deuterium (D) is as follows: TiC decorated dislocations > high energy grain boundaries > low energy grain boundaries.
Subjects
HIGH-STRENGTH; PARTICLES; SITES
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Type
journal article