摘要
用扫描电子显微镜和Ｘ射线能谱仪对风机轮叶片断口进行了综合分析。探明风机轮叶片断裂原因是由于空气中的ＳＯ２气体长期对叶片表面的腐蚀作用。开裂自晶界应力腐蚀裂纹起始，以疲劳开裂方式扩展，导致最终断裂。
The synthetic analysis on the fractures in fan blades has been carried out via the scanning electron microscope and X-ray energy spectrometer. It was detected that the fractures in fan blades were produced by the long-term corrosion of the gas SO 2 in the air against the blade surface. The fractcere began first with cracking resulting from the interface stress corrosion, then expanded in the manner of fatigue cracking, and finallg was existant.
出处
《钢铁研究》
CAS
1996年第5期33-35,51,共4页
Research on Iron and Steel
