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

已经证实，铁铝化物涂层(Fe3Al)可以提高材料的耐腐蚀性、氧化和耐磨性。在能源生产领域的应用也在积极考虑。例如**水电厂汽轮发电机上的涂料。这些涂层的一个令人满意的特点是它们应该是不透氢的。的确，钢中氢的存在会导致机械性能的脆化和损失。在本项目中，我们将研究吸氢对不锈钢表面铁铝化物涂层耐磨性的影响。**涂层的固有特性(晶体结构、化学成分、厚度等)的影响和外在特性(氢气压力、温度、pH等)对吸氢和耐磨性能进行了研究。这项研究**将与加拿大瓦伦斯魁北克水电研究所(IREQ)和伟尔研究所**合作完成。

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. For**example as coating on turbo-generators of hydro-electric power plants. A desirable characteristic of these**coatings is that they should be impermeable to hydrogen. Indeed, the presence of hydrogen in steel causes the**embrittlement and loss of mechanical properties. In this project we will study the impact of hydrogen uptake on**the wear resistance of iron aluminide coatings on stainless steel. The influence of the intrinsic characteristics of**coatings (crystalline structure, chemical composition, thickness, etc.) and extrinsic characteristics (hydrogen**pressure, temperature, pH, etc.) on hydrogen uptake and wear resistance properties will be studied. This study**will be done in partnership with the Institute of Hydro-Québec Research at Varennes (IREQ) and WEIR**Canada.