#7464. New insight into the relationship between grain boundaries and hardness in bainitic/martensitic steels from the crystallographic perspective

October 2026publication date
Proposal available till 18-05-2025
4 total number of authors per manuscript0 $

The title of the journal is available only for the authors who have already paid for
Journal’s subject area:
Mechanical Engineering;
Mechanics of Materials;
Condensed Matter Physics;
Materials Science (all);
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Abstract:
Different hierarchical bainitic/martensitic microstructures were obtained by varying the cooling rates for low-carbon steels with different Nb concentrations. Vickers hardness was measured and electron backscatter diffraction (EBSD) analysis was performed to evaluate the local strain and grain boundary (GB) density. It is found that the local strain cannot explain the difference in hardness while a close relationship exists between the high angle grain boundaries (HAGBs) and the hardness.
Keywords:
Grain boundaries; Interfaces; Metals and alloys; Microstructure; Phase transformations

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