在合金上含有Cu的复合微弧氧化涂层
Zaiqiang Feng1, Chenxi Li1, Chang Xin1
1School of Materials Science and Engineering, North China University of Water Resources and Electric Power Zhengzhou 450045 China tangmq400@163.com.
RSC advances
|October 16, 2024
概括
将铜颗粒添加到合金上的氧化物 (MAO) 涂层中,可以显著提高其硬度和稳定性. 这种复合材料涂层表现出改进的摩擦特性,使其成为各种应用的有希望的材料.
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?
- 部落学 (tribology) 是一个学科.
背景情况:
- -氧化物 (MAO) 涂层应用于合金,以改善表面性能.
- 修改MAO涂层可以进一步提高其性能,特别是在 tribological 应用中.
- 纳入金属颗粒是复合MAO涂层开发的潜在策略.
研究的目的:
- 研究铜 (Cu) 颗粒对MAO涂层在合金上的性能的影响.
- 评估Cu修饰MAO涂层的结构,机械和摩擦特性.
- 了解Cu粒子融入MAO涂层的机制.
主要方法:
- 在合金上使用酸酸电解质制备MAO涂层.
- 在MAO涂层形成过程中将不同度的Cu颗粒添加到电解质中.
- 涂层厚度,结构特征 (XRD),硬度 (HV) 和摩擦系数的表征.
主要成果:
- 含有Cu颗粒的MAO涂层含有Cu和CuO,与基层 (TiO2) 不同.
- 硬度从420HV (基础) 增加到470HV,使用2g的L-1Cu颗粒.
- 含的MAO涂层显示出稳定的摩擦系数和增强的摩擦性能 (3.6倍以上).
结论:
- 在MAO涂层中加入的铜颗粒提高了其紧性和机械性能.
- 铜的可塑性有助于复合材料涂层的增强和稳定的摩擦性能.
- 与传统的MAO涂层相比,Cu改性MAO涂层具有更高的硬度和 Tribological 行为.
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