混合陶增强FSP表面复合材料在不同温度下的磨损行为
Venkatesh Chenrayan1, Kiran Shahapurkar2, Panneerselvam Natarajan3
1Centre of Excellence-Advanced Materials Synthesis (CoE-AMS), (AU-STIC), Department of Mechanical Engineering, Alliance School of Applied Engineering, Alliance University, Bengaluru, 562106, India. venkyachvsh@yahoo.co.in.
Scientific reports
|October 28, 2025
概括
这项研究开发了一种新型轻质复合材料,使用通过摩擦处理处理处理的碳化和氧化颗粒. 增强的复合材料在环境和高温下显著提高了耐磨性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 部落学 (tribology) 是一个学科.
背景情况:
- 部件的磨损增加了制造和机床的成本.
- 需要具有优越耐磨性的先进材料.
研究的目的:
- 开发一种新的轻量级表面复合材料,用混合SiC和Y2O3颗粒增强.
- 使用摩擦过程 (FSP) 在不同温度条件下调查磨损特征.
主要方法:
- 摩擦过程 (FSP) 用于制造具有不同混合颗粒含量的复合样本.
- 在周围环境和高温下进行滑动三极学试验.
- 微观结构和粒度大小分析.
- 表面地形分析. 地形分析.
主要成果:
- 通过动态再结晶,在金块区实现了更细粒度的结构.
- 在环境温度 (45N负荷) 下,Al-3SiC-1Y2O3复合材料的耐磨性比基材高126%.
- 而Al-3SiC-1Y2O3复合材料在高温下 (45N负荷) 的耐磨性比基材高53.88%.
- 磨损机制不同:粘附和磨损在环境中,纯磨损在高温下.
- 与环境相比,高温时的磨损损失增加了90%.
结论:
- FSP有效地产生细粒度的微观结构,以提高耐磨性.
- SiC和Y2O3的混合增强显著提高了基复合材料的磨损性能.
- 了解温度依赖的磨损机制对于在苛刻的应用中进行材料选择至关重要.
相关概念视频
Characteristics of Dry Friction
949
Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
949
Abrasion Resistance of Concrete
503
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
One such test is the revolving disc test, where three plates...
503
Frictional Force
9.6K
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...
9.6K
Effect of Temperature Change on Reaction Rate
4.9K
The Arrhenius equation,
4.9K
Strength and Heat of Hydration
642
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
642
Thermal Stress
3.2K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
3.2K


