|
|
|
| Failure analysis of blade cracking |
| ZHU Jiao,ZHONG Zhenqian,ZHAI Zhanjiang,YU Xueliang |
| National Analysis Center for Iron and Steel, Beijing 100081, China |
|
|
|
Abstract Analysis on the surface cracking of a certain blade during operation for some time was carried out by means of optical microscope (OM), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), tensile strength tester and microVickers. The working conditions of the blade were listed as below: the rated operating speed was 3 000 r/min, the operating temperature was 92.5 ℃, and the pressure was -0.594 MPa. The results showed that the local aggregation of the medium containing sulfate ions on the blade surface led to surface corrosion, which was the main reason for the blade cracking failure. The cracking was the surface corrosion which started from the surface, and then the pitting cracking failure was caused.
|
|
Received: 18 November 2020
|
|
|
|
| [1] |
LIU Tao1,2， CHEN Yongfeng1， ZHU Libin1， ZUO Xiaotan1， ZHANG Hongbiao1， LIU Chao3,4. Effect of alloy adjustment on corrosion resistance of steel rebar[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2022, 34(2): 156-161. |
| [2] |
WU Jianpeng,LI Yao,XU Hailong,CAO Feng,ZHOU Peirong. Influence of simulated marine atmospheric environment on corrosion behaviors of XCS-lode steel and 30CrNi3Mo steel[J]. PHYSICS EXAMINATION AND TESTING, 2022, 40(2): 13-17. |
| [3] |
CHANG Guodong,WU Min. Failure analysis of tube bundle of coal moisture control steam rotary dryer in a coking plant [J]. PHYSICS EXAMINATION AND TESTING, 2022, 40(2): 53-56. |
| [4] |
MA Fei-yue. Development and prosperity of macrostructure etching process of continuous casting billet[J]. CONTINUOUS CASTING, 2022, 47(1): 9-13. |
| [5] |
Jia-qiang Jing, Jie Guo, Ba Li, Shu-jun Jia, Yi Ren. Relationship between microstructure and corrosion behavior of highgrade pipeline steel in a low-temperature environment[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2021, 28(8): 1037-1046. |
| [6] |
YANG Heng，WU Kaiming，WANG Yuhang，HU Feng，HOU Tingping，LI Guangqiang. Study on corrosionactive inclusions and seawater corrosion resistance of high strength marine steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2021, 33(7): 610-618. |
|
|
|
|
2022, Vol. 40 
