Failure analysis of stainless steel tee cracking

Baolin Liu; Chenyang Du; Chang Liu; Jianyu Lu; Ce Song; Xiaowei Li; Xin Cheng

doi:10.1117/12.3008285

25 October 2023 Failure analysis of stainless steel tee cracking

Baolin Liu, Chenyang Du, Chang Liu, Jianyu Lu, Ce Song, Xiaowei Li, Xin Cheng

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128011P (2023) https://doi.org/10.1117/12.3008285
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

Aiming at the cracking of Stainless steel tee in olefin plant of a petrochemical company, the failure reasons were analyzed by means of chemical detection of material, macroscopic observation, metallographic and hardness detection, microscopic observation of crack fracture and so on. The results show that: The inside of tee contains hydrogen medium, and the material has not been treated with solution, making the material structure more sensitive to hydrogen, and when used at low temperatures, making the material more brittle, the final result is hydrogen - induced cracking of tee.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Baolin Liu, Chenyang Du, Chang Liu, Jianyu Lu, Ce Song, Xiaowei Li, and Xin Cheng "Failure analysis of stainless steel tee cracking", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128011P (25 October 2023); https://doi.org/10.1117/12.3008285

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