Microstructure, Mechanical and Tribological Properties of Cold Sprayed Fe-Based Metallic Glass Coatings
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Cold spraying effectively produces thick, dense amorphous iron-based metallic glass coatings. Coatings on steel substrates exhibit superior hardness and wear resistance compared to those on aluminum alloys.
Area Of Science
- Materials Science
- Surface Engineering
- Metallurgy
Background
- Iron-based metallic glasses offer excellent properties like high strength, corrosion resistance, and magnetic characteristics.
- Cold spraying is a promising technique for depositing amorphous coatings due to rapid cooling and minimal thermal impact.
Purpose Of The Study
- To investigate the production of amorphous iron-based metallic glass coatings using cold spraying.
- To evaluate the influence of different substrates (steel vs. aluminum alloy) on coating properties.
Main Methods
- Cold spraying of commercially available iron-based metallic glass powder.
- Microstructural analysis, phase composition determination, microhardness testing, flexural strength evaluation, and wear behavior assessment.
- Tribological testing using a Si3N4 ball.
Main Results
- Successfully produced thick, dense amorphous coatings with minimal porosity.
- Coatings on steel substrates demonstrated higher microhardness and better wear resistance than those on aluminum alloy.
- The coating-steel substrate system showed significantly higher durability under bending stress.
Conclusions
- Cold spraying is an effective method for creating high-quality amorphous iron-based metallic glass coatings.
- Substrate material significantly impacts the mechanical and tribological performance of the coatings.
- Iron-based metallic glass coatings show potential for applications requiring high strength and wear resistance.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
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...