The distinguishing feature of the cold spray process, when compared with the conventional thermal spray process, is its ability to produce coatings with high-velocity rather than high-temperature particle jet. This article provides an overview of the cold spray process and the parameters that affect both the process deposition efficiency and properties of the prepared coatings. It describes a variety of cold spray coating materials, namely, pure metals, ferrous and nonferrous metal alloys, composites, and cermets. The article presents various industrial applications of cold spray coatings.
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