Cold gas dynamic spraying has shown to be a promising approach for fabricating titanium structures directly from powder in the absence of a controlled atmosphere. This study investigates the effect of annealing on the microstructure, hardness, and tensile properties of commercial purity titanium deposited under cold spray conditions. Equiaxed grains with ultrafine grain structure are observed in the annealed samples. A physical based model is proposed for recrystallization of cold-sprayed titanium deposits and the results are compared with conventional cold-rolled and annealed titanium products.

annealing, cold spraying, commercially pure titanium, mechanical properties, microstructure
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Copyright © 2009 ASM International. All rights reserved.
2009
ASM International
Topics
Microstructure Commercially pure titanium Cold spray coating Annealing Vickers microindentation hardness Tensile properties
Issue Section:
Cold Spray
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