压缩机涡轮轴裂纹分析

Failure Analysis of the Compressor Turbine Shaft

对出现早期裂纹的某进口压缩机涡轮轴进行了理化分析。结果表明,该零件选材正确,热处理工艺符合要求。零件冶金质量差,且表面处理前零件表面存在裂纹,是涡轮轴产生裂纹的原因。

In this paper, physical testing and chemical analysis on the cracked compressor turbine shaft were carried out. The results show that, the material selecting and the process of heat treatment of the shaft are correct. The crack is induced mainly by poor metallurgical quality of the shaft and the crack that occurred on the shaft surface before surface treatment.