%0 Journal Article
%T Element-Resolved Corrosion Analysis of Stainless-Type Glass-Forming Steels
%A M. J. Duarte
%A J. Klemm
%A S. O. Klemm
%A K. J. J. Mayrhofer
%A M. Stratmann
%A S. Borodin
%A A. H. Romero
%A M. Madinehe
%A D. Crespo
%A J. Serrano
%A S. S. A. Gerstl
%A P. P. Choi
%A D. Raabe
%A F. U. Renner
%J Physics
%D 2014
%I arXiv
%R 10.1126/science.1230081
%X Ultrathin passive films effectively prevent the chemical attack of stainless steel grades in corrosive environments; their stability critically depends on the interplay between structure and chemistry of the constituents Fe-Cr-Mo. In particular, nanoscale inhomogeneities along the surface can have a tremendous impact on material failure, but are yet barely understood. Addressing a stainless-type glass-forming Fe50Cr15Mo14C15B6 alloy and utilizing a combination of complementary high-resolution analytical techniques, we relate near-atomistic insight into different gradual nanostructures with time- and element-resolved dissolution behavior. The progressive elemental segregation on the nanoscale is followed in its influence on the concomitant degree of passivity. A detrimental transition from Cr-controlled passivity to Mo-controlled breakdown is dissected atom-by-atom demonstrating the importance of nanoscale knowledge for understanding corrosion.
%U http://arxiv.org/abs/1402.3318v1