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In studies of erosion–corrosion of composite based coatings, there have been few attempts to map the mechanisms of the erosion–corrosion process. This is despite the fact cermet-based coatings are being increasingly used to combat erosion on pipelines and pumps where the degradation is caused by a combination of sand particles and seawater. In addition, the interactions between the processes of erosion...
The material degradation of a high velocity oxy-fuel (HVOF) WCCoCr thermal spray coating is addressed in this paper focusing on the effect of corrosion and the degradation caused by the interaction between corrosion and erosion (synergy) on the overall material loss in erosion–corrosion environments. The mechanical and electrochemical components, which contribute to degradation are isolated and evaluated...
The efficient performance of drilling tools in aqueous environments requires materials that can effectively resist excessive material loss due to the combined effects of erosion and corrosion. In this paper, the interactions between electrochemical corrosion and mechanical erosion have been assessed in liquid-solid slurry. The following materials were used: (a) a cobalt-based alloy which is currently...
The erosion–corrosion behaviour of three high-alloy stainless steels (UNS S31245, UNS S32654 and UNS S32750) under aggressive liquid–solid impingement conditions has been assessed using a combination of electrochemical tests and weight-loss analysis. The material loss occurring under conditions of varying solid loading (900mg/l), and at a temperature of 18°C, velocity of 17m/s and impingement angle...
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