Corrosion behavior of double-glow plasma copperizing coating on Q235 steel
In this paper, the copperized layerwas fabricated on the surface of Q235 steel via double glow plasma surface alloying technology to improve the marine fouling organisms attached on the surface of marine structures. The microstructure and phases composition of the coating were analyzed by SEM and XR...
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University of Belgrade, Technical Faculty, Bor
2020-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000017Y.pdf |
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| author | Yang Z.-G. Liang W.-P. Jia Y.-L. Miao Q. Ding Z. Qi Y. |
| author_facet | Yang Z.-G. Liang W.-P. Jia Y.-L. Miao Q. Ding Z. Qi Y. |
| author_sort | Yang Z.-G. |
| collection | DOAJ |
| description | In this paper, the copperized layerwas fabricated on the surface of Q235 steel via double glow plasma surface alloying technology to improve the marine fouling organisms attached on the surface of marine structures. The microstructure and phases composition of the coating were analyzed by SEM and XRD. The corrosion characteristics of substrate and coating were investigated in 3.5wt.% NaCl solution.The results indicated that the protective coating had a novel structure of an outermost deposition layer (85μm) and inner diffusion layer (51 μm), which exhibited great adhesion stress because of the metallurgical bonding effects. The corrosion characteristics of substrate and coating were analyzed in detail. The corrosion products of Q235 steel were mainly β-FeOOH, γ-FeOOH, and α-FeOOH in the early stage of corrosion process. Then the whisker-like structure of α-FeOOH grew on the surface of γ-FeOOH and the β-FeOOH transformed into γ-FeOOH to achieve thermodynamical equilibrium. The dissolved copper ions in solution resulted in a unique difference in the formation of corrosion products, which inhibited the transition of iron hydroxide and promoted the formation of amorphous phases. Based on electrochemical measurement, the coating hadlower corrosion current density and higher charge transfer resistance than substrate. The corrosion resistance of copperized layer wasbetter than that of Q235 steel. |
| format | Article |
| id | doaj-art-7d79017cc23e43da9da319c31dca9fb6 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-7d79017cc23e43da9da319c31dca9fb62025-02-02T03:11:00ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752020-01-0156225726810.2298/JMMB190820017Y1450-53392000017YCorrosion behavior of double-glow plasma copperizing coating on Q235 steelYang Z.-G.0Liang W.-P.1Jia Y.-L.2Miao Q.3Ding Z.4Qi Y.5School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaSchool of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaCollege of Materials Science and Engineering, Central South University, Changsha, China + College of Materials Science and Technology, Beijing University of Technology / Ping Le Yuan, Chaoyang District, Beijing, ChinaSchool of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaSchool of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaSchool of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaIn this paper, the copperized layerwas fabricated on the surface of Q235 steel via double glow plasma surface alloying technology to improve the marine fouling organisms attached on the surface of marine structures. The microstructure and phases composition of the coating were analyzed by SEM and XRD. The corrosion characteristics of substrate and coating were investigated in 3.5wt.% NaCl solution.The results indicated that the protective coating had a novel structure of an outermost deposition layer (85μm) and inner diffusion layer (51 μm), which exhibited great adhesion stress because of the metallurgical bonding effects. The corrosion characteristics of substrate and coating were analyzed in detail. The corrosion products of Q235 steel were mainly β-FeOOH, γ-FeOOH, and α-FeOOH in the early stage of corrosion process. Then the whisker-like structure of α-FeOOH grew on the surface of γ-FeOOH and the β-FeOOH transformed into γ-FeOOH to achieve thermodynamical equilibrium. The dissolved copper ions in solution resulted in a unique difference in the formation of corrosion products, which inhibited the transition of iron hydroxide and promoted the formation of amorphous phases. Based on electrochemical measurement, the coating hadlower corrosion current density and higher charge transfer resistance than substrate. The corrosion resistance of copperized layer wasbetter than that of Q235 steel.http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000017Y.pdfdouble glow plasma technologyplasma surface metallurgycopperized layerantifouling coatingscorrosion characteristicsrust layer |
| spellingShingle | Yang Z.-G. Liang W.-P. Jia Y.-L. Miao Q. Ding Z. Qi Y. Corrosion behavior of double-glow plasma copperizing coating on Q235 steel Journal of Mining and Metallurgy. Section B: Metallurgy double glow plasma technology plasma surface metallurgy copperized layer antifouling coatings corrosion characteristics rust layer |
| title | Corrosion behavior of double-glow plasma copperizing coating on Q235 steel |
| title_full | Corrosion behavior of double-glow plasma copperizing coating on Q235 steel |
| title_fullStr | Corrosion behavior of double-glow plasma copperizing coating on Q235 steel |
| title_full_unstemmed | Corrosion behavior of double-glow plasma copperizing coating on Q235 steel |
| title_short | Corrosion behavior of double-glow plasma copperizing coating on Q235 steel |
| title_sort | corrosion behavior of double glow plasma copperizing coating on q235 steel |
| topic | double glow plasma technology plasma surface metallurgy copperized layer antifouling coatings corrosion characteristics rust layer |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2020/1450-53392000017Y.pdf |
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