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对某炼油厂烟气轮机失效的叶片进行了化学成分（包括相成分等）、性能（包括高温性能等）、金相、断口及应力分析研究后认为：烟机转子叶片断裂的原因主要与叶片（包括叶轮）嵌入部位的几何形状和材料的微观组织结构等有关。
After analyzing the chemical composition (including phase composition, etc.), performance (including high temperature performance, etc.), metallographic, fracture and stress analysis of the flue gas turbine failed blade, it is concluded that the main reason for the blade rupture is mainly related to the blade (Including impeller) embedded parts of the geometric shape and material microstructure and so on.