In situ Bragg coherent X-ray diffraction imaging of corrosion in a Co-Fe alloy microcrystal.

ABSTRACT: Corrosion is a major concern for many industries, as corrosive environments can induce structural and morphological changes that lead to material dissolution and accelerate material failure. The progression of corrosion depends on nanoscale morphology, stress, and defects present. Experimentally monitoring this complex interplay is challenging. Here we implement in situ Bragg coherent X-ray diffraction imaging (BCDI) to probe the dissolution of a Co-Fe alloy microcrystal exposed to hydrochloric acid (HCl). By measuring five Bragg reflections from a single isolated microcrystal at ambient conditions, we compare the full three-dimensional (3D) strain state before corrosion and the strain along the [111] direction throughout the corrosion process. We find that the strained surface laye

SUBMITTER: Yang D 

PROVIDER: S-EPMC9074767 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature