The results show that because of tensile stressproducted in their environment and working process, the gasturbinewheel cracks under the action of stress corrosion.
结果表明，由于叶轮所处环境及工作过程中所受的拉应力作用，风机叶轮在应力腐蚀作用下开裂。
2
In addition, improper heat treatment process and welding defects promotes the destruction trend in the gasturbinewheel.