|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Three-Dimensional Characterization of Microstructure and Elemental Segregation of Thermal Spray Coatings
||Thomas A. Ivanoff, Jonathan D. Madison, Nathan W. Moore, Aaron Olson
|On-Site Speaker (Planned)
||Thomas A. Ivanoff
Thermal spray coatings are frequently used to provide improved resistance to wear, corrosion and thermal conduction across a variety of structural metals including, but not limited to, steel and nickel. For these reasons, thermal spray coatings have found extensive use in a multitude of industries. The performance and structural integrity of these coatings are often sensitive to microstructure and chemical segregation. Three-dimensional characterization has been used to characterize the complex, interconnected microconstituents in coatings and map chemical inhomogeneity. Here mechanical serial-sectioning of Ta thermal spray coatings is combined with optical and scanning electron microscopy as well as energy-dispersive X-ray spectroscopy to map elemental composition and identify spatial distributions of oxides. Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.