负脉冲对合金微弧氧化的黑色电解质稳定性的负脉冲的影响
Bo Chen1, Rui Tong1, Hongtao Li1
1College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
Materials (Basel, Switzerland)
|June 19, 2024
概括
引入负脉冲电场改善了合金微弧氧化涂层. 这种方法减少了微孔和微裂,同时显著降低了异常的铜离子消耗.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 电化学 电化学 电化学
背景情况:
- 合金需要防护涂层来防止腐蚀.
- 微弧氧化 (MAO) 是一种对金属的表面处理方法.
- 了解电解质特性对于优化MAO涂层至关重要.
研究的目的:
- 为了研究负脉冲电场对合金微弧氧化的影响.
- 在负脉冲条件下分析黑色电解质和处理区域的特性.
- 确定负脉冲如何影响涂层组成和微观结构.
主要方法:
- 微弧氧化与负脉冲电场.
- 用X射线衍射 (XRD) 进行相位组合分析.
- 扫描电子显微镜 (SEM) 用于微观结构的检查.
- 能量分散光谱 (EDS) 用于元素分布.
主要成果:
- 负脉冲促进了涂料中MgO和MgSiO3的形成.
- 涂层微孔尺寸和微裂显著减少.
- 异常的铜离子消耗量大大改善,降至单极水平的26%.
结论:
- 负脉冲应用增强了合金MAO涂层.
- 改善的涂层质量与缺陷减少和更好的离子管理有关.
- 负脉冲改变电场,促进有益离子迁移,减少不必要的降水.
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