Symposium Chairs

Christoph Leyens, Tech. Univ. of Brandenburg / Cottbus, Germany, leyens@tu-cottbus.de
Michael J. Maloney, Pratt & Whitney Aircraft, USA, michael.j.maloney@pw.utc.com

Addresses surface technologies to ameliorate high-temperature thermal, chemical, and physical degradation of materials, with particular focus on applications in gas/steam turbines and chemical/petrochemical processes.  Topics of interest cover a wide range of high-temperature effects, including corrosion (e.g., oxidation, sulfidation, carburization), catalytic and physical fouling (e.g., coking, particulate attachment), and wear (e.g., adhesion, abrasion, erosion), with emphasis on coatings and other surface/interface modifications to sustain system properties in harsh operating environments.

A1. Coatings to Resist High Temperature Oxidation 

Session Chairs: Ying Zhang, Tennessee Technical University, USA, yzhang@tntech.edu, and Krystyna Stiller, Chalmers University of Technology, Sweden, stiller@fy.chalmers.se  

Papers concerning all aspects of design, processing and performance of coatings to resist elevated temperature oxidation. Topics include composition and processing optimization, effects of applied stress, characterization of coatings and reaction products, new processing methods, and the modeling of fabrication and degradation processes (e.g., coating-substrate interdiffusion, thermal cycling, phase and microstructural stability).

Invited Speakers:

Daniel Monceau, CIRIMAT ENSIACET, France: “Cyclic oxidation evaluation of nickel aluminides and MCrAlY-Base Multilayer Coatings Fabricated by Sparks Plasma Sintering”

Brian Hazel, General Electric Aviation, USA: "High Temperature Coatings for Gas Turbine Engines"

Dmytro Naumenko, Forschungszentrum Jülich, Germany “Compositional, geometrical and manufacturing related parameters affecting the oxidation resistance of MCrAlY-coatings”

 A2. Coatings for Use in Harsh Environments 

Session Chairs: John R. Nicholls Cranfield University, UK, j.r.nicholls@cranfield.ac.uk and Michael Schütze, DECHEMA, Germany, schuetze@dechema.de

This session addresses the mitigation of corrosion and fouling in predominately reducing environments.  Examples of harsh thermochemical environments include slagging, coking, fouling, corrosion under deposits (e.g., fireside corrosion, hot corrosion), erosive/corrosive wear at temperature, as well as deleterious interactions between these phenomena and mechanical integrity.  Papers addressing issues as well as solutions are encouraged, with focus on materials for use in gas and steam turbomachinery, diesel engines, petrochemical and gasification plants, and primary/secondary metal forming industries.

Invited Speakers:

Bettina Bordenet, Alstrom Power, Switzerland: "TBD"

A3. Thermal Barrier Coatings 

Session Chairs:

Ann Bolcavage, Rolls-Royce Corporation, USA, ann.bolcavage@rolls-royce.com
Remy Mevrel, ONERA, France, Remy.Mevrel@onera.fr
Kenneth Murphy, Howmet Castings, kmurphy@howmet.com

Papers will focus on the development, design, synthesis and applications of thermal barrier coatings for gas turbines. Topics include process understanding and novel processing methods, characterization of coating microstructures, thermal/optical/mechanical/chemical properties, destructive/nondestructive testing techniques, structure/property relationships, residual stresses, aging phenomena, substrate/bondcoat/ceramic system effects, and failure mechanisms.

Invited Speakers:

Yong-ho Sohn, University of Central Florida, USA: “Analysis of Multicomponent Interdiffusion and its Application in High Temperature Alloys and Coatings”

Robert Vassen, Forschungszentrum Jülich, Germany: “Advanced Thermal Barrier Coatings "

John Hutchinson, Harvard University, USA: “Thermal Barrier Coatings”

A4. Clearance Control and Wear Coatings 

Session Chairs: David Allen, Siemens, USA, david.b.allen@siemens.com and David Rickerby, RR plc, UK, David.Rickerby@rolls-royce.com

In high temperature rotating industrial machines, such as gas turbines, close fitting between the rotating and stationary mating components is essential for high performance efficiency. Closer fits may lead to occasional rub interactions at high temperature, high tip speeds and even high infeed rates. This session is a forum to explore abradable seal and abrasive tip coating combinations, their materials science of design and fabrication, their properties and very importantly their high speed rub interaction. Materials, microstructures, wear mechanisms, rub forces, frictional temperature issues are all of interest. 

Invited Speakers:

Papken Hovespian, Sheffield Hallam University, UK: “New generation HIPIMS nanostructured coatings to perform in severe high temperature environment”

Symposium A | Symposium B | Symposium C | Symposium D | Symposium E | Symposium F | Symposium G | Symposium H
   Topical Session TS-1 | Topical Session TS-2 | Topical Session TS-3  | Topical Session TS-4 
Conference Highlights | Exhibit Information