摘要
对断裂叶片进行了化学成分、金相组织以及电子探针分析。结果表明，沙角A厂4号汽轮机低压转子叶片断裂是由于叶片铝元素以富集形式存在，降低了材料的冲击韧性，满足不了设计要求，致使叶片失效断裂。
Two blades of the low-pressure rotor of steam turbine No. 4 fractured in Shajiao A Power Plant. The chemical composition and metallurgical structure of the fractured blades were analyzed.Electron-probe analysis was also conducted. The results indicate that the enriched aluminum in the blades decreased the impact toughness of the material, which led to the failure of the blades.
出处
《广东电力》
1998年第1期21-23,共3页
Guangdong Electric Power
