| Issue |
E3S Web of Conf.
Volume 406, 2023
2023 9th International Conference on Energy Materials and Environment Engineering (ICEMEE 2023)
|
|
|---|---|---|
| Article Number | 02013 | |
| Number of page(s) | 4 | |
| Section | Energy Conservation Technology and Energy Sustainability | |
| DOI | https://doi.org/10.1051/e3sconf/202340602013 | |
| Published online | 31 July 2023 | |
Failure Analysis of Butane Spherical Tank Flange Cover Crack
China Special Equipment Inspection and Research Institute, No.2 Heping Street Xiyuan, Beijing 100029, China
* Email address: chenyangdu@126.com
In response to the crack failure phenomenon of the lower flange cover of a butane spherical tank in a certain petrochemical company, the failure reason was analyzed through macroscopic observation, material analysis, scanning electron microscopy analysis, metallographic test analysis, impact test analysis, etc. The results show that the fillet weld of the flange cover is a stress concentration area, and after a period of use, the internal stress gradually releases. In addition, the internal dislocations in the grains gather, causing cracks to initiate from within the grains and gradually delay the occurrence of cracks, leading to brittle fracture failure of the flange cover.
© The Authors, published by EDP Sciences, 2023
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