Genesis of Nanogalvanic Corrosion Revealed in Pearlitic Steel.

ABSTRACT: Nanoscale, localized corrosion underpins billions of dollars in damage and material costs each year; however, the processes responsible have remained elusive due to the complexity of studying degradative material behavior at nanoscale liquid-solid interfaces. Recent improvements to liquid cell scanning/transmission electron microscopy and associated techniques enable this first look at the nanogalvanic corrosion processes underlying this widespread damage. Nanogalvanic corrosion is observed to initiate at the near-surface ferrite/cementite phase interfaces that typify carbon steel. In minutes, the corrosion front delves deeper into the material, claiming a thin layer of ferrite around all exposed phase boundaries before progressing laterally, converting the ferrite to corrosion product nor

SUBMITTER: Hayden SC 

PROVIDER: S-EPMC9479139 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature