In this paper, a coated wire is developed and used to produce iron aluminide-WC intermetallic matrix composite (IMC) layers via arc spraying. The microstructure and phases of the deposits are examined, showing that the main phase of the wire-sprayed layer consists of iron aluminide and the reinforcement phase consists of WC, W 2 C, and alpha-aluminum oxide. The erosion-corrosion behavior of the FeAl-WC layer is determined at different particle beam angles and temperatures and is compared with that of 1018 steel. Paper includes a German-language abstract.

The aim of this study is to show how electron beam remelting affects the structure and properties of CoCrW coatings. As described in the paper, CoCrW powders are plasma sprayed onto nickel substrates and a modified electron beam welder is used to remelt the deposits. The effects of the treatment are assessed via SEM and XRD analysis, wear testing, and hardness measurements. In summary, electron beam remelting improves a number of coating properties including adhesion strength and fretting wear resistance. It also eliminates oxide inclusions and lamellar structures and reduces layer porosity. Paper includes a German-language abstract.

This paper discusses the principles of high velocity arc spraying (HVAS) and its use in surface engineering. It also reviews applications in marine environments and power plant boiler pipes, where HVAS coatings provide corrosion protection.