Open AccessResearch on erosion model based on AISI 8630
Author(s) -
Xin Rong,
Houyu Zhu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1633/1/012018
Subject(s) - subsea , erosion , particle (ecology) , abrasive , submarine pipeline , environmental science , geotechnical engineering , materials science , geology , metallurgy , geomorphology , oceanography
Subsea oil tree is the key equipment for offshore oil and gas extraction, and erosion will cause wall-thinning phenomenon of equipment, which will decrease the equipment’s pressure-bearing capacity and cause great safety risks. In this paper, a new erosion model is proposed by studying the erosion law of the common material (AISI 8630) in subsea tree. The mechanism of erosion is explained by observing the change in the surface micro-morphology of the erosion pit photographed by scanning-electron microscope. The effect of five factors including particle size, particle impact velocity, particle impact angle, particle concentration and impact duration on the erosion are also investigated. And the AISI 8630 erosion model is obtained through data analysis. By comparing the results of experiment and numerical simulation, it is found that the simulation error of the AISI 8630 erosion model is the smallest between four common erosion models. So, it can be concluded that the AISI 8630 erosion model can be used to study the erosion of underwater tree.