Tailoring Microstructure in L-PBF 316L Stainless Steel for Enhancing Corrosion Performance, N00014-18-1-2614PI, Jason Trelewicz, Associate Professor, Materials Science Dept, Stony Brook University
Abstract
Tailoring Microstructure in L-PBF 316L Stainless Steel for Enhancing Corrosion Performance, N00014-18-1-2614PI, Jason Trelewicz. The hypothesis of the proposed research is that chemical heterogeneities deriving from elemental segregation to dislocation network structures enhances the susceptibility of L-PBF 316L to localized attack. A multifaceted research initiative is proposed to test this hypothesis with a focus on two enabling research thrusts: (i) microstructural origins of anomalous corrosion behavior, and (ii) tailoring microstructure for enhanced corrosion performance. By employing a combination of multi-modal synchrotron characterization techniques and baseline testing protocol combined with electrochemical polarization experiments, we will be able to unravel the role of microstructure across multiple length scales on the corrosion performance. Understanding the impact of microstructure and chemical heterogeneities on the susceptibility to pitting and intergranular attack will enable microstructurally-informed process optimization and materials design for enhancing the corrosion resistance of L-PBF 316L stainless steel.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 29, 2020
- Source ID
- N000142012293
Entities
People
- Jason Trelewicz
Organizations
- Office of Naval Research
- Research Foundation for the State University of New York
- United States Navy