The analysis showed that the bladecorrosion failure was the result of the interactions of electrochemical corrosion and erosion.
结果表明：叶轮的腐蚀失效是电化学腐蚀和冲蚀交互作用的结果。
2
The corrosion pits on the blade surface contributed to such failure as an additive factor.
叶片表面的腐蚀坑是其疲劳断裂的另一促进因素。
3
Scanning electron microscopy analysis on blade fracture shows: the fracture is characterized by cleavage, quasi-cleavage and stress corrosion and so on.