Study of the effect of hydrogen in iron aluminide coatings on the tribological behavior

点击翻译按钮获取中文摘要

It has already been established that iron aluminide coatings (Fe3Al) can increase the resistance to corrosion,oxidation and abrasion of materials. Application in the field of energy production are actively considered. Forexample as coating on turbo-generators of hydro-electric power plants. A desirable characteristic of thesecoatings is that they should be impermeable to hydrogen. Indeed, the presence of hydrogen in steel causes theembrittlement and loss of mechanical properties. In this project we will study the impact of hydrogen uptake onthe wear resistance of iron aluminide coatings on stainless steel. The influence of the intrinsic characteristics ofcoatings (crystalline structure, chemical composition, thickness, etc.) and extrinsic characteristics (hydrogenpressure, temperature, pH, etc.) on hydrogen uptake and wear resistance properties will be studied. This studywill be done in partnership with the Institute of Hydro-Québec Research at Varennes (IREQ) and WEIRCanada.