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为了保护燃气涡轮发动机的重要零件——涡轮和导向叶片免遭高温氧化,现在广泛采用了扩散耐热涂层[1—4],然而这种保护涂层可能对所用材料的强度性能,特别是对疲劳抗力有影响[5,6]。 早期完成的工作指出[3,7,8],耐热材料的耐久性与实施保护涂层的工艺、热处理制度以及其他因素有关。燃气涡轮机零件工作条件的复杂性、新成分涂层的研制以及对评定带涂
In order to protect important components of gas turbine engines - turbine and guide vanes from high temperature oxidation, diffusion resistant heat-resistant coatings are now widely used [1-4], however this protective coating may have an impact on the strength properties of the materials used, in particular Impact on fatigue resistance [5,6]. Earlier work has pointed out [3,7,8] that the durability of heat-resistant materials is related to the process of applying the protective coating, the heat treatment regime, and other factors. The complexity of working conditions of gas turbine parts, the development of new component coatings,