To create blades of gas-turbine engines of new generation made of materials based on alloys of the Nb–Si system, we study the surface layer formed on niobium by its silicides with additionally introduced titanium elements. It is shown that the heat resistance of these specimens does not depend on the method of formation of the surface layer and depends only on its thickness. The addition of titanium increases the heat resistance of the specimens at 1350°C depending on its content. We also performed the thermodynamic analysis of the possibility of simultaneous saturation of the surface of niobium with titanium and boron under the action of vapors of the NaCl activator.

中文翻译：

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提高燃气轮机叶片涂层的耐热性

为了制造由基于 Nb-Si 系统合金的材料制成的新一代燃气轮机发动机叶片，我们研究了铌的硅化物和额外引入的钛元素在铌上形成的表面层。结果表明，这些样品的耐热性不取决于表面层的形成方法，而仅取决于其厚度。根据钛的含量，钛的添加提高了试样在 1350°C 时的耐热性。我们还对在 NaCl 活化剂的蒸汽作用下铌表面同时被钛和硼饱和的可能性进行了热力学分析。