不锈钢在NaCl溶液中点蚀的数值模拟
Numerical Simulation of Pitting Corrosion of Stainless Steel in NaCl Solution
摘 要
基于格子玻尔兹曼（LB）方法，为模拟多相多组分流动与传输、电化学反应、固液相间转化等，建了不锈钢点蚀的LB腐蚀模型。应用该模型，得到了不锈钢在点蚀全过程中点蚀坑形貌特征变化以及不同组分的含量分布情况。该模型能够清晰地说明不锈钢点蚀的反应机理，包括点蚀成核、点蚀的亚稳态过程以及点蚀的稳态过程。对比模拟结果同试验结果可以发现，腐蚀量随时间变化的趋势大致相同，这证明了该模拟方法的准确性。
电化学反应
点蚀
结点体积法
Lattice Boltzmann (LB) method
electrochemical reaction
pitting corrosion
volume of pixel
Abstract
Based on the lattice Boltzmann (LB) method, an LB corrosion model for pitting corrosion of stainless steel was established to simulate electrochemical reactions, multiphase multicomponent flow and transmission between solid and liquid phases. By using this model, the change of pitting morphology and the content distribution of different components in the whole process of pitting corrosion of stainless steel were obtained. This model could clearly explain the reaction mechanism of pitting corrosion of stainless steel, including pitting nucleation, metastable process of pitting corrosion, and steady state process of pitting corrosion. Comparing the simulation results with the test results, it could be found that the trend of the corrosion volume with time was roughly the same, which proved the accuracy of the simulation method.
中图分类号 TG171 DOI 10.11973/fsyfh-202002010
所属栏目 数值模拟
基金项目 国家自然基金（U1633111；51206179）；中央高校基本科研业务费（3122017036；3122017040）
收稿日期 2018/7/3
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引用该论文: CUI Jing,YANG Fan,YANG Tinghao,YANG Guangfeng. Numerical Simulation of Pitting Corrosion of Stainless Steel in NaCl Solution[J]. Corrosion & Protection, 2020, 41(2): 50
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【3】HE X Y, LI N, BYRON G. Lattice boltzmann simulation of diffusion-convection systems with surface chemical reaction[J]. Molecular Simulation, 2000, 25(3/4):145-156.
【4】KANG Q, ZHANG D, CHEN S, et al. Lattice Boltzmann simulation of chemical dissolution in porous media[J]. Physical Review E Statistical Nonlinear & Soft Matter Physics, 2002, 65(3):036318.
【5】KANG Q, LICHTNER P C, VISWANATHAN H S, et al. Pore scale modeling of reactive transport involved in geologic CO2 sequestration[J]. Transport in Porous Media, 2010, 82(1):197-213.
【6】CHEN L, KANG Q, ROBINSON B A, et al. Pore-scale modeling of multiphase reactive transport with phase transitions and dissolution-precipitation processes in closed systems[J]. Physical Review E:Statistical Nonlinear & Soft Matter Physics, 2013, 87(4):043306.
【7】NOGUES J P, FITTS J P, CELIA M A, et al. Permeability evolution due to dissolution and precipitation of carbonates using reactive transport modeling in pore networks[J]. Water Resources Research, 2013, 49(9):6006-6021.
【8】YOON H, VALOCCHI A J, WERTH C J, et al. Pore-scale simulation of mixing-induced calcium carbonate precipitation and dissolution in a microfluidic pore network[J]. Water Resources Research, 2012, 48(2):2478-2478.
【9】LIU M, MOSTAGHIMI P. High-resolution pore-scale simulation of dissolution in porous media[J]. Chemical Engineering Science, 2017, 161:360-369.
【10】HUBER C, SHAFEI B, PARMIGIANI A. A new pore-scale model for linear and non-linear heterogeneous dissolution and precipitation[J]. Geochimica Et Cosmochimica Acta, 2014, 124(1):109-130.
【11】MU Y T, CHEN L, HE Y L, et al. Pore-scale modelling of dynamic interaction between SVOCs and airborne particles with lattice Boltzmann method[J]. Building & Environment, 2016, 104:152-161.
【12】PEDERSEN J, JETTESTUEN E, MADLAND M V, et al. A dissolution model that accounts for coverage of mineral surfaces by precipitation in core floods[J]. Advances in Water Resources, 2015, 87:68-79.
【13】CHEN L, KANG Q, HE Y L, et al. Mesoscopic study of the effects of gel concentration and materials on the formation of precipitation patterns[J]. Langmuir:the ACS Journal of Surfaces & Colloids, 2012, 28(32):11745-11754.
【14】CHEN L, LUAN H B, HE Y L, et al. Pore-scale flow and mass transport in gas diffusion layer of proton exchange membrane fuel cell with interdigitated flow fields[J]. International Journal of Thermal Sciences, 2012, 51(4):132-144.
【15】ATIA A, MOHAMMEDI K. Lattice boltzmann investigation of thermal effect on convective mixing at the edge of solvent chamber in CO2-VAPEX process[J]. World Journal of Engineering, 2015, 12(4):353-362.
【16】CHEN L, KANG Q, MU Y, et al. A critical review of the pseudopotential multiphase lattice boltzmann model:Methods and applications[J]. International Journal of Heat & Mass Transfer, 2014, 76(6):210-236.
【17】CHEN L, KANG Q, TANG Q, et al. Pore-scale simulation of multicomponent multiphase reactive transport with dissolution and precipitation[J]. International Journal of Heat & Mass Transfer, 2015, 85:935-949.
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【19】KANG Q, LICHTNER P C, ZHANG D. An improved lattice boltzmann model for multicomponent reactive transport in porous media at the pore scale[J]. Water Resources Research, 2007, 43(12):2578-2584.
【20】MIN T, GAO Y, CHEN L, et al. Changes in porosity, permeability and surface area during rock dissolution:effects of mineralogical heterogeneity[J]. International Journal of Heat & Mass Transfer, 2016, 103:900-913.
【21】KANG Q, LICHTNER P C, ZHANG D. Lattice boltzmann pore-scale model for multicomponent reactive transport in porous media[J]. Journal of Geophysical Research Solid Earth, 2006, 111(B5):1-9.
【22】王杰. 不锈钢表面耐点蚀性钝化膜的研究[D]. 成都:西南交通大学,2014.
【23】LIU M, MOSTAGHIMI P. High-resolution pore-scale simulation of dissolution in porous media[J]. Chemical Engineering Science, 2017, 161:360-369.
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