Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive
In order to obtain a more protective phosphate conversion coating with a denser architecture, the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy was tuned in this work. A pretreatment process was proposed and organic additives were incorporated, which aims...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956723002128 |
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| author | Siyu Sun Peng Zhou Yan Chen JinTao Xiao Jingli Sun Yong Yuan Tao Zhang Fuhui Wang |
| author_facet | Siyu Sun Peng Zhou Yan Chen JinTao Xiao Jingli Sun Yong Yuan Tao Zhang Fuhui Wang |
| author_sort | Siyu Sun |
| collection | DOAJ |
| description | In order to obtain a more protective phosphate conversion coating with a denser architecture, the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy was tuned in this work. A pretreatment process was proposed and organic additives were incorporated, which aims at increasing the ionic produce (Jsp) at the interface for increasing σ, and decreasing the critical ionic product (JC,sp), respectively. Results prove that the pretreatment of bare alloys in a phosphate bath could increase the ion products of MgHPO4 / MnHPO4. The addition of benzalkonium chloride could neutralize the charges of crystals, and in turn promote the nucleation kinetics. A denser and more protective conversion coating could consequently be obtained. |
| format | Article |
| id | doaj-art-cc16d79ada9e4c788808514edcad5441 |
| institution | Kabale University |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-cc16d79ada9e4c788808514edcad54412025-02-06T05:11:36ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-01-01131207218Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additiveSiyu Sun0Peng Zhou1Yan Chen2JinTao Xiao3Jingli Sun4Yong Yuan5Tao Zhang6Fuhui Wang7Shenyang National Laboratory for Materials Science, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China; Corresponding author.Shanghai Aerospace Equipments Manufacturer Co. Ltd., Shanghai 200245, ChinaShanghai Aerospace Equipments Manufacturer Co. Ltd., Shanghai 200245, ChinaShanghai Spaceflight Precision Machinery Institute, No. 76 Guide Road, Songjiang, Shanghai 201600, ChinaShanghai Spaceflight Precision Machinery Institute, No. 76 Guide Road, Songjiang, Shanghai 201600, ChinaShenyang National Laboratory for Materials Science, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, ChinaShenyang National Laboratory for Materials Science, Northeastern University, 3-11 Wenhua Road, Shenyang 110819, ChinaIn order to obtain a more protective phosphate conversion coating with a denser architecture, the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy was tuned in this work. A pretreatment process was proposed and organic additives were incorporated, which aims at increasing the ionic produce (Jsp) at the interface for increasing σ, and decreasing the critical ionic product (JC,sp), respectively. Results prove that the pretreatment of bare alloys in a phosphate bath could increase the ion products of MgHPO4 / MnHPO4. The addition of benzalkonium chloride could neutralize the charges of crystals, and in turn promote the nucleation kinetics. A denser and more protective conversion coating could consequently be obtained.http://www.sciencedirect.com/science/article/pii/S2213956723002128Phosphate conversion coatingNucleus densityTA/pH theoryMagnesium alloyCorrosion resistance |
| spellingShingle | Siyu Sun Peng Zhou Yan Chen JinTao Xiao Jingli Sun Yong Yuan Tao Zhang Fuhui Wang Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive Journal of Magnesium and Alloys Phosphate conversion coating Nucleus density TA/pH theory Magnesium alloy Corrosion resistance |
| title | Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive |
| title_full | Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive |
| title_fullStr | Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive |
| title_full_unstemmed | Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive |
| title_short | Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive |
| title_sort | tuning the nucleation kinetics of phosphate chemical conversion coating on mg gd y zr magnesium alloy the effect of pretreatment and organic additive |
| topic | Phosphate conversion coating Nucleus density TA/pH theory Magnesium alloy Corrosion resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2213956723002128 |
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