E. Sansoucy, B. Jodoin, University of Ottawa, Ottawa, ON, Canada; G. E. Kim, Perpetual Technologies, Inc., Ile des Soeurs, QC, Canada; A. L. Moran, United States Naval Academy, Annapolis, MD
The addition of cobalt and cerium to an aluminum matrix enhances its corrosion properties and improves its resistance to halide-induced pitting. The Cold Spray deposition process is capable of depositing a wide variety of aluminum alloy coatings. Al-Co-Ce coatings produced by the Cold Spray technology are promising applications in the field of anodic protection of aluminum structures. The objectives of this study are to produce Al-Co-Ce coatings using the Cold Spray process and evaluate their mechanical properties. The microstructures of the resulting coatings are characterized using scanning electron microscopy (SEM). The coatings are also subjected to adhesion strength and hardness testing according to standard mechanical test methods. In this paper, these mechanical properties are correlated to the particle velocities, which were measured by a laser diagnostic system. The fatigue behavior of bare specimens, conventional Alclad coated samples and Cold Sprayed Al-Co-Ce coatings are also compared.
Summary: The objectives of this study are to produce Al-Co-Ce coatings using the Cold Spray deposition process and evaluate their mechanical properties. The microstructures of the resulting coatings are characterized using scanning electron microscopy. Adhesion strength and hardness testing are conducted according to standard mechanical testing methods. The fatigue behavior of bare specimens, conventional Alclad samples and Cold Sprayed Al-Co-Ce coatings are also compared in this paper.
