Research Letter | Open Access
Victor K. Champagne, Dennis J. Helfritch, Matthew D. Trexler, "Some Material Characteristics of Cold-Sprayed Structures", Advances in Materials Science and Engineering, vol. 2007, Article ID 027347, 3 pages, 2007. https://doi.org/10.1155/2007/27347
Some Material Characteristics of Cold-Sprayed Structures
The deposition and consolidation of metal powders by means of cold spray are methods whereby powder particles are accelerated to high velocity through entrainment in a gas undergoing expansion in a rocket nozzle and are subsequently impacted upon a surface. The impacted powder particles form a consolidated structure which can be several centimeters thick. The characteristics of this structure depend on the initial characteristics of the metal powder and upon impact velocity. The influence of impact velocity on strain hardening and porosity are examined. A materials model is proposed for these phenomena, and model calculation is compared with experiment for the cold spraying of aluminum.
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Copyright © 2007 Victor K. Champagne et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.