The Effects of Constant Kinetic Energy of Different Impacting Particles on Slurry Erosion Wear of AA 6063
| Autor: | Girish R. Desale, Bhushan D. Nandre |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Silicon Mechanical Engineering Metallurgy chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces Particulates 021001 nanoscience & nanotechnology Kinetic energy Surfaces Coatings and Films 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Mechanics of Materials Slurry Erosion 6063 aluminium alloy Particle size 0210 nano-technology Quartz |
| Zdroj: | Journal of Tribology. 140 |
| ISSN: | 1528-8897 0742-4787 |
| DOI: | 10.1115/1.4038355 |
| Popis: | The present experimental study investigates the effect of constant kinetic energy on erosion wear of aluminum alloy 6063. Three different natural erodents (quartz, silicon carbide, and alumina) with different particle sizes are used to impact at 45 deg and 90 deg impact angles. For calculating the number of particles in the slurry pot, it is assumed that the solid particles are of spherical shape. The total numbers of impacting solid particles were kept constant by adjusting the solid concentration, velocity, and test duration. The scanning electron microscope (SEM) images of the three erodents show that the alumina particles have sharp edges with more angularity, and silicon carbide particles have subangular nature while quartz particles are blocky in shape. The mass loss per particle at 45 deg impact angle is observed higher than at normal impact angle. It may be due to the change in material removal mechanism with changing the impact angle. It is also found that the mass loss per particle from the target material having different particle size with constant kinetic energy remains constant for respective erodents. This indicates that the velocity exponent of impacting particles is around 2. The SEM images of eroded surfaces reveal the different mechanisms of material removal at 45 deg impact angle and at normal impact angle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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