|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Grain Boundary Plane Dependence of Sensitization in Austenitic Stainless Steel
||Matthew Hartshorne, Mitra Lenore Taheri
|On-Site Speaker (Planned)
Austenitic stainless steels are widely used in the nuclear power, petrochemical and renewable energy industries due to their corrosion resistance, however a limiting factor in their service lives is sensitization from high temperature processing or applications. This sensitization is caused by the precipitation of chromium carbides on grain boundaries, leading to intergranular corrosion and stress corrosion cracking. Grain boundary engineered microstructures have been proposed as a solution to mitigate sensitization, utilizing thermomechanical processing to increase the content of corrosion resistant grain boundaries. Experiments will be presented utilizing EBSD, in situ TEM and bulk corrosion testing to provide an in depth understanding of the connection of the grain boundary plane and grain boundary character distribution with sensitization kinetics and intergranular corrosion resistance.
||Planned: A print-only volume