Author： Binder K.
Publisher： Springer Publishing Company
ISSN： 1059-9630
Source： Journal of Thermal Spray Technology, Vol.20, Iss.1-2, 2011-01, pp. : 234-242
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Abstract
Titanium coatings have a high potential for various applications and can be produced in high quality by cold spraying. In this contribution, the two major challenges are addressed: (i) optimizing mechanical properties by systematic variation of process parameters, and (ii) evaluating the influence of the spray angle with respect to complex geometries. High deposition efficiencies of more than 95% can be obtained and the coatings show very low porosities as well as high tensile strength of over 450 MPa by using nitrogen as process gas. The influence of process conditions on the mechanical properties is discussed on the basis of single impact morphologies, coating microstructures, tubular coating tensile, as well as shear tests.
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