In this paper, the influence of the plasma spray parameters on the mechanical properties of Ni-50% Cr coatings is systematically studied using the method of orthogonal regression test planning. The target properties include adhesive strength, micro-hardness, grinding wear, and erosion wear. The three spray parameters used as variables are plasma arc current, Ar flow rate, and spray distance. From the regression formulas, it is concluded that the effects of the spray parameters on the properties largely depend on the individual properties. Paper includes a German-language abstract.

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