Serhatcan Berk AKÇAY, Temel VAROL, Onur GÜLER, Hüseyin Can AKSA

Bor Karbür Takviyeli Al Esaslı Kompozitlerin Özellikleri Üzerine Bor Karbür Takviye Miktarının Etkisi

Bu çalışmada, ağırlıkça %10, %20 ve %40 Bor Karbür (B4C) içerikli Al matris partiküllerin ve kompakt malzemelerin üretimi ve karakterizasyonu gerçekleştirilmiştir. B4C takviyeli Al matris kompakt malzemelerin elektriksel iletkenlik değerleri en düşük 6,97 %IACS ve en yüksek 20,73 %IACS olarak belirlenmiştir. Deneysel çalışmalar sonucunda, mikro yapıda ağırlıkça artan B4C takviyesinin yapının yoğunluğunu azaltma ve sertliğini arttırma noktasında olumlu etkisi olduğu anlaşılmıştır. Yapısında ağırlıkça %10, %20 ve %40 B4C içeren Al matris kompakt malzemelerin yoğunluk değerleri sırasıyla 2,622 gr/cm3, 2,598 gr/cm3 ve 2,568 gr/cm3 olarak, sertlik değerleri sırasıyla 244.34 HV(0.5), 270.16 HV(0.5) ve 290.70 HV(0.5) olarak ölçülmüştür.

Anahtar Kelimeler:

Alüminyum matris, Bor karbür, Mekanik Öğütme, Metal Matris Kompozit, Toz Metalurjisi

Effect of Boron Carbide Reinforcement Amount on the Properties of Boron Carbide Reinforced Al Based Composites

In this study, the production and characterization of Al matrix particles and compact materials containing 10%, 20% and 40% by weight Boron Carbide (B4C) were carried out. The electrical conductivity values of B4C reinforced Al matrix compact materials were determined as the lowest 6.97% IACS and the highest 20.73% IACS. As a result of experimental studies, it has been understood that B4C reinforcement, which increases in weight in the microstructure, has a positive effect on reducing the density of the structure and increasing its hardness. Density values of Al matrix compact materials containing 10%, 20% and 40% B4C by weight in their structure were measured as 2.622 gr/cm3, 2,598 gr/cm3 and 2,568 gr/cm3. Hardness values were measured as 244.34 HV(0.5), 270.16 HV(0.5) and 290.70 HV(0.5), respectively.

Keywords:

Aluminum matrix, Boron Carbide, Mechanical Milling, Metal Matrix Composite, Powder Metallurgy,

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