来自不同合金的多层摩擦表面结构的腐蚀行为
Eduardo Antunes Duda1,2, Zina Kallien3,4, Sabrina da Silva Soares5
1Solid State Materials Processing, Institute of Material and Process Design, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502, Geesthacht, Germany. antunes.eduardo@ufrgs.br.
Scientific reports
|April 30, 2024
概括
摩擦表面 (FS) 创建了容易腐蚀的精致微观结构. 基材料AA5083与FS沉积层和基板相比,具有更高的耐腐蚀性.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
- 表面工程是什么?表面工程是什么?
背景情况:
- 摩擦表面 (FS) 是一种固态涂层方法,利用摩擦和塑性变形来进行金属材料沉积.
- 在FS沉积的层中微结构的精细化可能会导致由于微电对形成而增加对腐蚀的敏感性.
- 了解FS沉积材料的腐蚀行为对于其实际应用至关重要.
研究的目的:
- 为了研究和比较摩擦表面 (FS) 沉积材料,其基材料 (AA5083) 和基板的腐蚀行为.
- 为了将观察到的腐蚀特征与微观结构差异相关联,特别是颗粒大小.
- 为了评估这些材料在化物环境中的稳定性.
主要方法:
- 循环极化测试被用来评估坑核和传播.
- 开放电路电位 (OCP) 监测被用来评估材料随时间的稳定性.
- 进行了微观结构分析,重点是颗粒大小,并与腐蚀结果相关联.
主要成果:
- 与基材料相比,FS沉积的材料呈现出更平衡和更精细的粒度结构.
- 基材料表现出更高的抗坑核化能力,比沉积材料和基板呈现更少和更小的坑.
- 与基板和沉积物质相比,OCP监测表明化物溶液中的基材料的稳定性更高.
结论:
- 由摩擦表面 (FS) 产生的精细微观结构可能会对耐腐蚀性产生负面影响.
- 基材料 (AA5083) 在含的环境中,在FS沉积层和基板上提供了优越的腐蚀性能.
- 微结构颗粒精细化是影响摩擦表面组件腐蚀行为的关键因素.
更多相关视频
07:24Imaging Corrosion at the Metal-Paint Interface Using Time-of-Flight Secondary Ion Mass Spectrometry
Published on: May 6, 2019
8.3K
12:18Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys
Published on: June 27, 2022
2.6K
相关概念视频
Corrosion
24.1K
The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
24.1K
Corrosion of Reinforcement
178
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
178
Frictional Force
7.9K
When a body is in motion, it encounters resistance because the body interacts with its surroundings. This resistance is known as friction, a common yet complex force whose behavior is still not completely understood. Friction opposes relative motion between systems in contact, but also allows us to move. Friction arises in part due to the roughness of surfaces in contact. For one object to move along a surface, it must rise to where the peaks of the surface can skip along the bottom of the...
7.9K
Dry Friction
384
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
384
Fatigue
181
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
181
