Document Type : Original Article
Authors
1
Professor, Materials and Manufacturing Technologies University Complex, Malek Ashtar University of Technology, Tehran, Iran
2
MSc in Mechanical Engineering, Materials and Manufacturing Technologies University Complex, Malek Ashtar University of Technology, Tehran, Iran
3
PhD in Mechanical Engineering, Materials and Manufacturing Technologies University Complex, Malek Ashtar University of Technology, Tehran, Iran
4
PhD Candidate in Aerospace Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Iran
Abstract
Particle-reinforced metal matrix composites are among the latest engineering materials, and their rapid development in recent years can be attributed to their exceptional properties, including high specific strength, wear resistance, corrosion resistance, high elastic modulus, and wide-ranging applications. These materials are used in various industries such as aerospace, telecommunications, electronics, automotive, defense, and many other commercial and consumer products. In this study, the effect of the percentage of diamond particles with a size of 100 micrometers on the mechanical and wear properties of bronze-diamond composites is investigated. Composite powders with varying diamond percentages in a bronze matrix are prepared using a ball mill to mix the bronze and diamond powders, and the resulting composite powders are consolidated through hot pressing. Using scanning electron microscopy, the effect of diamond content on their uniform distribution, the microstructure of the bronze matrix, and the mechanical and wear properties are examined. This study investigates the effect of different weight percentages of diamond particles (8%, 10%, 12%) on the properties of bronze-diamond composites. The results indicate that adding diamond to the metal matrix reduces flexural strength. Furthermore, as the weight percentage of diamond increases, flexural strength decreases, while wear resistance improves with higher diamond content.
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