Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata

Porous microstructure is a common surface morphology that is widely used in antifouling, drag reduction, adsorption, and other applications. In this paper, the lattice gas automata (LGA) method was used to simulate the non-uniform electrochemical machining of porous structure at the mesoscopic level...

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Autores principales:	Hongyu Wei, Zhongning Guo, Zhiyu Ma
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	non-uniform electrolytic machining lattice gas automata (LGA) simulation porous microstructure Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/57587c9195c24cf6ad93e8a20743919b
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id	oai:doaj.org-article:57587c9195c24cf6ad93e8a20743919b
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spelling	oai:doaj.org-article:57587c9195c24cf6ad93e8a20743919b2021-11-25T18:21:16ZModeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata10.3390/met111116942075-4701https://doaj.org/article/57587c9195c24cf6ad93e8a20743919b2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1694https://doaj.org/toc/2075-4701Porous microstructure is a common surface morphology that is widely used in antifouling, drag reduction, adsorption, and other applications. In this paper, the lattice gas automata (LGA) method was used to simulate the non-uniform electrochemical machining of porous structure at the mesoscopic level. In a cellular space, the metal and the electrolyte were separated into orderly grids, the migration of corrosive particles was determined by an electric field, and the influences of the concentration gradient and corrosion products were considered. It was found that different pore morphologies were formed due to the competition between dissolution and diffusion. When the voltage was low, diffusion was sufficient, and no deposit was formed at the bottom of the pore. The pore grew faster along the depth and attained a cylindrical shape with a large depth-to-diameter ratio. As the voltage increased, the dissolution rates in all directions were the same; therefore, the pore became approximately spherical. When the voltage continued to increase, corrosion products were not discharged in time due to the rapid dissolution rate. Consequently, a sedimentary layer was formed at the bottom of the pore and hindered further dissolution. In turn, a disc-shaped pore with secondary pores was formed. The obtained simulation results were verified by experimental findings. This study revealed the causes of different morphologies of pores, which has certain guiding significance for non-uniform electrochemical machining.Hongyu WeiZhongning GuoZhiyu MaMDPI AGarticlenon-uniform electrolytic machininglattice gas automata (LGA)simulationporousmicrostructureMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1694, p 1694 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	non-uniform electrolytic machining lattice gas automata (LGA) simulation porous microstructure Mining engineering. Metallurgy TN1-997
spellingShingle	non-uniform electrolytic machining lattice gas automata (LGA) simulation porous microstructure Mining engineering. Metallurgy TN1-997 Hongyu Wei Zhongning Guo Zhiyu Ma Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
description	Porous microstructure is a common surface morphology that is widely used in antifouling, drag reduction, adsorption, and other applications. In this paper, the lattice gas automata (LGA) method was used to simulate the non-uniform electrochemical machining of porous structure at the mesoscopic level. In a cellular space, the metal and the electrolyte were separated into orderly grids, the migration of corrosive particles was determined by an electric field, and the influences of the concentration gradient and corrosion products were considered. It was found that different pore morphologies were formed due to the competition between dissolution and diffusion. When the voltage was low, diffusion was sufficient, and no deposit was formed at the bottom of the pore. The pore grew faster along the depth and attained a cylindrical shape with a large depth-to-diameter ratio. As the voltage increased, the dissolution rates in all directions were the same; therefore, the pore became approximately spherical. When the voltage continued to increase, corrosion products were not discharged in time due to the rapid dissolution rate. Consequently, a sedimentary layer was formed at the bottom of the pore and hindered further dissolution. In turn, a disc-shaped pore with secondary pores was formed. The obtained simulation results were verified by experimental findings. This study revealed the causes of different morphologies of pores, which has certain guiding significance for non-uniform electrochemical machining.
format	article
author	Hongyu Wei Zhongning Guo Zhiyu Ma
author_facet	Hongyu Wei Zhongning Guo Zhiyu Ma
author_sort	Hongyu Wei
title	Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
title_short	Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
title_full	Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
title_fullStr	Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
title_full_unstemmed	Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata
title_sort	modeling and simulation of non-uniform electrolytic machining based on cellular automata
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/57587c9195c24cf6ad93e8a20743919b
work_keys_str_mv	AT hongyuwei modelingandsimulationofnonuniformelectrolyticmachiningbasedoncellularautomata AT zhongningguo modelingandsimulationofnonuniformelectrolyticmachiningbasedoncellularautomata AT zhiyuma modelingandsimulationofnonuniformelectrolyticmachiningbasedoncellularautomata
_version_	1718411257687572480

Modeling and Simulation of Non-Uniform Electrolytic Machining Based on Cellular Automata

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