High dense Fe-Al composites made by annealing of cold-sprayed coatings

Monday, May 11, 2015: 3:50 PM
Room 102C (Long Beach Convention and Entertainment Center)
Dr. Evgeny Leshchinsky , The University of Windsor, Windsor, ON, Canada
Dr. Oleksandra Bielousova , DIPI Laboratory, Ecole Nationale d'Ingenieurs de Saint-Etienne (ENISE), Saint-Etienne, France
Dr. Elena Maeva , University of Windsor, Windsor, ON, Canada
The main goal of the combined Cold Spray – Sintering technology development is to obtain high density ductile Fe-Al intermetallics based thermal barrier coatings  as an alternative to conventional ZrO2 coatings widely applied in industry. The task of this paper is to examine the structural changes of cold sprayed Al-AISI 316L composite coatings due to synthesis of  Fe-Al intermetallics during annealing and find the conditions of high density composite formation. A dense Fe/Al intermetallic-Al composite coating is obtained. Three factors are found to play the main role in the structure formation of dense Fe-Al intermetallic composite coating: i) layered structure, ii) particle size and thickness of Fe and Al layers, iii) annealing temperature.
See more of: Cold Spray Processing
See more of: Fundamentals/R&D