Development of materials and coatings for improved performance in increasingly challenging environments is a constant subject of research in the materials field. The increasing need to improve the reliability and performance of materials in harsh environmental conditions, the constant need of the industry to optimize their processes, the continuous depletion of natural resources and the urgent necessity to reduce pollutants (e.g. CO, SOx, NOx) have motivated the design of new materials as well as further development of coating deposition and manufacturing processes. Harsh environments can be a media that promote the accelerated degradation of materials and coatings, which may result in decreased lifetime or in the premature failure of the components. Examples include hard- and lubricant-coatings for wear protection and dry cutting, high-temperature coatings to protect the hot-sections of aero-engines, steam power plants, combined cycle gas turbines, incinerators, etc. against oxidation and corrosion phenomena and maintain mechanical properties at operation temperatures as high as 1600°C, in O2/CO2/H2O/SO2 rich atmospheres, and/or many others aggressive conditions. These have been classified as diffusion coatings, overlay coatings, environmental and thermal barrier coatings (TBCs). TBCs can also be chemically attacked by molten deposits based on Calcium–Magnesium–Alumina–Silicate (CMAS) or volcanic ash.
Other applications can also demand the manufacturing of pieces for aeronautics (blades, landing gear, actuators), petrochemical (piping, tanks, and anticorrosion coatings), heavy machinery (hydraulic pistons), military (antiradar coatings, weapons), and recovering of parts and components industrial gas turbines (turbine blades for middle and high temperature and pressure). The Rejuvenation of Super-alloys (SA) and the Additive Manufacturing (AM) are two technological developments for re- & manufacturing of expensive components based on SA of complex geometries and surfaces. The development of experimental databases for AM of parts and the relationship with the material properties of SA and other alloys such as Titanium is still on their initial stages.
The purpose of this symposium is to stimulate the discussion of frontier basic and applied research to further develop the knowledge of the relationship between chemical, mechanical, microstructural, and structural properties on bulk materials, advanced coatings and surfaces in harsh environments. Basic studies, applied technologies, and theoretical approaches are all welcome.
- Thermal spray coatings
- Physical and chemical vapor deposition
- DMLS, SLM and Laser Cladding deposition
- Thermal barrier coatings
- Hard lubricant coatings
- Oxidation and hot-corrosion resistance
- CMAS and volcanic ash attack
- Tribology and Tribo-oxidation
- Mechanical properties, Residual stresses and Fatigue
- Thermodynamics and Kinetics
- Modeling and Simulation
Dr. Andrey Voevodin (UNT, USA), Dr. Stephen Muhl Saunders (UNAM, Mexico), Dr. Uwe Schulz (DLR, Germany), Dr. Raymundo Arroyave (Texas A&M, USA), Dr. Brian Gleeson (University of Pittsburgh, USA), Dr. Matthew R. Begley (UCSB, USA), Dr. Uwe Glatzel (Bayreuth University, Germany)