Abstract
Cold spraying is new technology which allows to obtain coatings with properties which are unobtainable by previously used thermal spray methods. This technology can be alsoused in the area of additive manufacturing. The article presents findings of microstructure and mechanical properties of cold-sprayed titanium structures on Al 7075 aluminum alloy.
Highlights
Research methodologyCurrently, the greatest potential for innovation in surface engineering technologies is provided by thermal spraying techniques
The paper presents the results of research on cold gas-sprayed titanium structure in the Surface Engineering Laboratory of Centre for Laser Technologies of Metals of Kielce University of Technology, where a robotic system for cold gas spraying Impact Innovation 5/8 is located (Fig. 1)
The titanium structure with a diameter of ø55.5 mm was sprayed with cold gas on a sleeve with a diameter of ø25 made of Al 7075 alloy (Fig. 2)
Summary
Research methodologyCurrently, the greatest potential for innovation in surface engineering technologies is provided by thermal spraying techniques. The special possibilities of depositing coatings with new properties are created by cold gas spraying, where the adverse effect of heat on the coating material has been eliminated. The main advantages of cold gas sprayed coatings are high purity and excellent physical properties, which creates many new possibilities for unconventional applications. The range of materials used in the cold gas spraying process includes pure metals (Cu, Ag, Al, Sn, Zn, Ni, Ta, Ti), alloys and cermets.
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