The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Bright O Okonkwo - One of the best experts on this subject based on the ideXlab platform.
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a new method to determine the synergistic effects of area ratio and microstructure on the Galvanic corrosion of las a508 309 l 308 l ss dissimilar metals weld
Journal of Materials Science & Technology, 2021Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Hongliang Ming, Jianqiu Wang, Ali Davoodi, Enhou Han, Saman HosseinpourAbstract:Abstract The synergistic effects of area ratio and microstructure on the Galvanic corrosion of A508/309 L/308 L dissimilar metals weld (DMW) are studied by a multi-analytical approach. It was demonstrated that decreasing the anode/cathode surface area ratio obviously enhances the corrosion rate of A508, both locally and globally. Deeper analyses of the AFM results enabled quantitative comparison of the corrosion behaviour of the different surface constituents. It was revealed that in the Galvanic Interaction of the DMW, the grain refined region corrodes most, followed by the partial grain refined region and base metal matrix of the A508, respectively. The electrochemical localization index (LI) estimation method and AFM analysis both confirmed the presence of a mixed (localized and uniform) corrosion phenomenon occurring on the surface of the A508 anode metal in the Galvanic Interaction of the dissimilar metals. Finally, the degree of synergism equation was utilized to describe the synergistic effects of anode/cathode area ratio and the microstructure of the samples on the Galvanic corrosion of LAS A508/309L/308L SS DMW.
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microscale investigation of the correlation between microstructure and Galvanic corrosion of low alloy steel a508 and its welded 309 308l stainless steel overlayer
Corrosion Science, 2019Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Saman Hosseinpour, Hongliang Ming, Jianqiu Wang, Zhiming Zhang, Ali DavoodiAbstract:Abstract The microscopic scale correlation between microstructure and Galvanic corrosion of low alloy steel-A508 and its welded-309/308 L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a Galvanic Interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
Ali Davoodi - One of the best experts on this subject based on the ideXlab platform.
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a new method to determine the synergistic effects of area ratio and microstructure on the Galvanic corrosion of las a508 309 l 308 l ss dissimilar metals weld
Journal of Materials Science & Technology, 2021Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Hongliang Ming, Jianqiu Wang, Ali Davoodi, Enhou Han, Saman HosseinpourAbstract:Abstract The synergistic effects of area ratio and microstructure on the Galvanic corrosion of A508/309 L/308 L dissimilar metals weld (DMW) are studied by a multi-analytical approach. It was demonstrated that decreasing the anode/cathode surface area ratio obviously enhances the corrosion rate of A508, both locally and globally. Deeper analyses of the AFM results enabled quantitative comparison of the corrosion behaviour of the different surface constituents. It was revealed that in the Galvanic Interaction of the DMW, the grain refined region corrodes most, followed by the partial grain refined region and base metal matrix of the A508, respectively. The electrochemical localization index (LI) estimation method and AFM analysis both confirmed the presence of a mixed (localized and uniform) corrosion phenomenon occurring on the surface of the A508 anode metal in the Galvanic Interaction of the dissimilar metals. Finally, the degree of synergism equation was utilized to describe the synergistic effects of anode/cathode area ratio and the microstructure of the samples on the Galvanic corrosion of LAS A508/309L/308L SS DMW.
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microscale investigation of the correlation between microstructure and Galvanic corrosion of low alloy steel a508 and its welded 309 308l stainless steel overlayer
Corrosion Science, 2019Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Saman Hosseinpour, Hongliang Ming, Jianqiu Wang, Zhiming Zhang, Ali DavoodiAbstract:Abstract The microscopic scale correlation between microstructure and Galvanic corrosion of low alloy steel-A508 and its welded-309/308 L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a Galvanic Interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
Ehsan Rahimi - One of the best experts on this subject based on the ideXlab platform.
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a new method to determine the synergistic effects of area ratio and microstructure on the Galvanic corrosion of las a508 309 l 308 l ss dissimilar metals weld
Journal of Materials Science & Technology, 2021Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Hongliang Ming, Jianqiu Wang, Ali Davoodi, Enhou Han, Saman HosseinpourAbstract:Abstract The synergistic effects of area ratio and microstructure on the Galvanic corrosion of A508/309 L/308 L dissimilar metals weld (DMW) are studied by a multi-analytical approach. It was demonstrated that decreasing the anode/cathode surface area ratio obviously enhances the corrosion rate of A508, both locally and globally. Deeper analyses of the AFM results enabled quantitative comparison of the corrosion behaviour of the different surface constituents. It was revealed that in the Galvanic Interaction of the DMW, the grain refined region corrodes most, followed by the partial grain refined region and base metal matrix of the A508, respectively. The electrochemical localization index (LI) estimation method and AFM analysis both confirmed the presence of a mixed (localized and uniform) corrosion phenomenon occurring on the surface of the A508 anode metal in the Galvanic Interaction of the dissimilar metals. Finally, the degree of synergism equation was utilized to describe the synergistic effects of anode/cathode area ratio and the microstructure of the samples on the Galvanic corrosion of LAS A508/309L/308L SS DMW.
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microscale investigation of the correlation between microstructure and Galvanic corrosion of low alloy steel a508 and its welded 309 308l stainless steel overlayer
Corrosion Science, 2019Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Saman Hosseinpour, Hongliang Ming, Jianqiu Wang, Zhiming Zhang, Ali DavoodiAbstract:Abstract The microscopic scale correlation between microstructure and Galvanic corrosion of low alloy steel-A508 and its welded-309/308 L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a Galvanic Interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
Saman Hosseinpour - One of the best experts on this subject based on the ideXlab platform.
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a new method to determine the synergistic effects of area ratio and microstructure on the Galvanic corrosion of las a508 309 l 308 l ss dissimilar metals weld
Journal of Materials Science & Technology, 2021Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Hongliang Ming, Jianqiu Wang, Ali Davoodi, Enhou Han, Saman HosseinpourAbstract:Abstract The synergistic effects of area ratio and microstructure on the Galvanic corrosion of A508/309 L/308 L dissimilar metals weld (DMW) are studied by a multi-analytical approach. It was demonstrated that decreasing the anode/cathode surface area ratio obviously enhances the corrosion rate of A508, both locally and globally. Deeper analyses of the AFM results enabled quantitative comparison of the corrosion behaviour of the different surface constituents. It was revealed that in the Galvanic Interaction of the DMW, the grain refined region corrodes most, followed by the partial grain refined region and base metal matrix of the A508, respectively. The electrochemical localization index (LI) estimation method and AFM analysis both confirmed the presence of a mixed (localized and uniform) corrosion phenomenon occurring on the surface of the A508 anode metal in the Galvanic Interaction of the dissimilar metals. Finally, the degree of synergism equation was utilized to describe the synergistic effects of anode/cathode area ratio and the microstructure of the samples on the Galvanic corrosion of LAS A508/309L/308L SS DMW.
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microscale investigation of the correlation between microstructure and Galvanic corrosion of low alloy steel a508 and its welded 309 308l stainless steel overlayer
Corrosion Science, 2019Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Saman Hosseinpour, Hongliang Ming, Jianqiu Wang, Zhiming Zhang, Ali DavoodiAbstract:Abstract The microscopic scale correlation between microstructure and Galvanic corrosion of low alloy steel-A508 and its welded-309/308 L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a Galvanic Interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
Jianqiu Wang - One of the best experts on this subject based on the ideXlab platform.
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a new method to determine the synergistic effects of area ratio and microstructure on the Galvanic corrosion of las a508 309 l 308 l ss dissimilar metals weld
Journal of Materials Science & Technology, 2021Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Hongliang Ming, Jianqiu Wang, Ali Davoodi, Enhou Han, Saman HosseinpourAbstract:Abstract The synergistic effects of area ratio and microstructure on the Galvanic corrosion of A508/309 L/308 L dissimilar metals weld (DMW) are studied by a multi-analytical approach. It was demonstrated that decreasing the anode/cathode surface area ratio obviously enhances the corrosion rate of A508, both locally and globally. Deeper analyses of the AFM results enabled quantitative comparison of the corrosion behaviour of the different surface constituents. It was revealed that in the Galvanic Interaction of the DMW, the grain refined region corrodes most, followed by the partial grain refined region and base metal matrix of the A508, respectively. The electrochemical localization index (LI) estimation method and AFM analysis both confirmed the presence of a mixed (localized and uniform) corrosion phenomenon occurring on the surface of the A508 anode metal in the Galvanic Interaction of the dissimilar metals. Finally, the degree of synergism equation was utilized to describe the synergistic effects of anode/cathode area ratio and the microstructure of the samples on the Galvanic corrosion of LAS A508/309L/308L SS DMW.
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microscale investigation of the correlation between microstructure and Galvanic corrosion of low alloy steel a508 and its welded 309 308l stainless steel overlayer
Corrosion Science, 2019Co-Authors: Bright O Okonkwo, Ehsan Rahimi, Saman Hosseinpour, Hongliang Ming, Jianqiu Wang, Zhiming Zhang, Ali DavoodiAbstract:Abstract The microscopic scale correlation between microstructure and Galvanic corrosion of low alloy steel-A508 and its welded-309/308 L stainless steel overlayer is investigated. Microstructural characterization shows that the welding process induces complexities at HAZ of the base metal. The microstructure of HAZ changes from tempered bainite to a non-uniform mixture of martensite and bainite, depending on the heat flow. This change in the microstructure leads to a heterogeneous corrosion attack on the base metal (anode), while the weld metal (cathode) is protected in a Galvanic Interaction. The extent and rate of corrosion attacks on the surface constituents are quantified by AFM.
