Three iron-base alloys with different chemical compositions were developed and sprayed in these investigations. The effect of different process parameters (primarily a reactive APS and VPS process) on the attainable nitrogen concentrations and on the resulting coating structure is demonstrated. Furthermore, the metallurgical interaction between the selected alloys as a result of the spraying process is described and the properties (such as hardness, porosity and bond strength) are discussed. The objective of this development is to form nanostructured deposits of the vanadium-nitride type with a crystal structure similar to that of the austenitic lattice. The formation, appearance and type of deposits are described as functions of the process parameters. Paper text in German.

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