ABRASIVE WEAR BEHAVIOR OF FUNCTIONALLY GRADED AIB2/AI COMPOSITE

Year 2023, , 45 - 52, 31.12.2023

Ömer Savaş , İlknur Keskin

https://doi.org/10.47512/meujmaf.1403065

Abstract

Functionally graded composites (FGM) can combine high surface wear resistance and high toughness. For this reason, it has been seen to be preferred in many regions, especially in the defense and maritime sectors, in recent years. This study is an experimental study on the investigation of the wear properties of functionally graded AlB2 boride reinforced composite materials, which can be an alternative in the manufacturing of ship machinery parts exposed to repeated loads and wear. This study aims to increase the industrial usability of the boron element, which has strategic importance for our country. Pin-On-Disk technique and abrasive wear method were used to determine the wear properties of composites. In the wear tests, a total of 5 factors consisting of wear factors such as the region of the composite (% reinforcement ratio), abrasive particle diameter, application load, sliding distance and sliding speed were selected as test parameters with 3 levels. In wear tests, the "Taguchi Experimental Design" method was used. As a result of the study, it was seen that the hardness and wear resistance of aluminum increased with the addition of AlB2 into the aluminum matrix. It was observed that the load had an effect of 33.98%, the abrasive particle diameter had an effect of 31.68% and the AlB2 reinforcement ratio had a 10.73% effect on the wear resistance of the composites. As a result of the study, linear equations predicting 'wear resistance in different conditions' were obtained.

Keywords

Wear, AlB2, Functionally Graded Composite

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