Abstract

During operation, parts of the high temperature section of land-based gas turbine units are subjected to an aggressive gas environment, which affects adversely the durability of components and assemblies. When analyzing operational fractures of the ZhS32-VI alloy blade roots after operation as parts of land-based gas turbines, we found that cracks developed in the places of active sulfide-oxide corrosion. In this paper, it is shown that the presence of silver accelerates the corrosion of turbine blade roots. It is proposed to use TiN-based technological barrier layers to protect the blade root surfaces from sulfide-oxide corrosion.

中文翻译：

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气体环境对陆基燃气轮机叶根破坏过程的影响

摘要

在运行期间，陆基燃气轮机单元的高温部分部分会受到侵蚀性气体环境的影响，这会对部件和组件的耐用性产生不利影响。在分析作为陆基燃气轮机部件运行后的 ZhS32-VI 合金叶片根部的运行断裂时，我们发现裂纹在活跃的硫化物-氧化物腐蚀处发展。在本文中，表明银的存在加速了涡轮叶片根部的腐蚀。建议使用基于 TiN 的技术屏障层来保护叶片根部表面免受硫化物-氧化物腐蚀。