Hydrogen embrittlement in high strength marine structural steels can occur by improper cathodic protection. In this article the possibility of Hydrogen embrittlement (HE) in high strength steels caused by zinc and aluminium thermal sprayed (TS) coatings has been considered. Provided potential from the TS coatings in marine environments and permissible potential for performing cathodic protection and inhibiting HE has been described. Also effective parameters on HE and prevention methods for HE by thermal sprayed coatings has been reviewed. An effective method for quality stabilizing and potential regulating in anticorrosion TS coatings is utilization of the alloyed materials. Most used material for anticorrosion TS coatings is aluminium that provides relatively moderate potential and low current density and in particular situation can cause HE.

Iron aluminides show great potential for use in high-temperature oxygen and sulfur environments, but the intermetallic phases of the Fe-Al system tend to be brittle. This paper describes a powder making process in which FeAl phases are reinforced with inclusions from other intermetallic phases that arrest cracks and prevent them from spreading. Thermally sprayed coatings produced from these SHS powders are analyzed with regard to their composition and structure. Paper includes a German-language abstract.