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

Abstract

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

Project Number

FBA-2020-8478

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

Abstract

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.

Keywords

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

Supporting Institution

Karadeniz Teknik Üniversitesi Bilimsel Araştırma Projeleri (BAP) Koordinatörlüğü

Project Number

FBA-2020-8478

Thanks

Bu çalışma, Karadeniz Teknik Üniversitesi Bilimsel Araştırma Projeleri (BAP) Koordinatörlüğü, FBA-2020-8478 numaralı proje ile maddi olarak desteklenmiştir. Bu çalışmanın yazarları, vermiş oldukları desteklerden ötürü KTÜ-BAP’a teşekkürlerini sunar.

References

1. Mazzolani, F., Structural Applications of Aluminium in Civil Engineering, Structural Engineering International, 2006, 16, 280-285. https://doi.org/10.2749/101686606778995128.
2. Akid, R., Gobara, M., Wang, H., Corrosion protection performance of novel hybrid polyaniline/sol–gel coatings on an aluminium 2024 alloy in neutral, alkaline and acidic solutions, Electrochimica Acta, 2011, 56, 2483-2492. https://doi.org/10.1016/j.electacta.2010.12.032.
3. Zawawi, N., Azmi, W., Redhwan, A., Mohd Zaki, S., Coefficient of friction and wear rate effects of different composite nanolubricant concentrations on Aluminium 2024 plate, IOP Conference Series: Materials Science and Engineering, 2017, 257. https://doi.org/10.1088/1757-899X/257/1/012065.
4. Chernyatin, A., Lopez-Crespo, P., Moreno, B., Matvienko, Y., Multi-approach study of crack-tip mechanics on aluminium 2024 alloy, Theoretical and Applied Fracture Mechanics, 2018, 98. https://doi.org/10.1016/j.tafmec.2018.09.007.
5. Alizadeh, A., Taheri-Nassaj, E. and Baharvandi, H.R., Preperation and Investigation of Al4wt.%B4C Nanocomposite Powders using Mechanical Millin, Bulletin of Materials Science, 2011, 34, 1039-1048.
6. Ravindranath, V.M., Shiva Shankar, G.S., Basavarajappa, S. and Siddesh Kumar, N.G., Dry Sliding Wear Behavior of Hybrid Aluminum Metal Matrix Composite Reinforced with Boron Carbide and Graphite Particles, Materials Today: Proceedings,2017, 4(10), 11163- 11167.
7. Şenel, M. C., Toz Metalürjisi Yöntemiyle Üretilen Saf Al ve Al-B4C, Al-Al2O3 Kompozitlerin Mekanik ve Mikroyapı Özelliklerinin Karşılaştırılması, Gümüşhane Üniversitesi Fen Bilimleri Dergisi, 2020, 10 (3) , 783-795 . https://doi.org/10.17714/gumusfenbil.689359
8. İpek, R., Adhesive wear behaviour of B4C and SiC reinforced 4147 Al matrix composites (Al/B4C–Al/SiC, Journal of Materials Processing Technology, 2005, 162–163, 71-75. https://doi.org/10.1016/j.jmatprotec.2005.02.207.

9. Khakbiz, M. and Akhlaghi, F., Synthesis and structural characterization of Al–B4C nano-composite powders by mechanical alloying, Journal of Alloys and Compounds, 2009, 479(1–2), 334-341. https://doi.org/10.1016/j.jallcom.2008.12.076.
10. Zhang, L., Wang, Z., Li, Q., Wu,J., Shi, G., Qi, F. and Zhou, X., Microtopography and mechanical properties of vacuum hot pressing Al/B4C composites. Ceramics International, 2018, 44 (3),3048-3055. https://doi.org/10.1016/j.ceramint.2017.11.065.
11. Guo, H., Zhao, Y., Xu, S., Li, J., Liu, N., Zhang, Y., Zhang, Z., Influence of high B4C contents on structural evolution of Al-B4C nanocomposite powders produced by high energy ball milling, Ceramics International, 2019, 45(5), 5436-5447, https://doi.org/10.1016/j.ceramint.2018.11.247.
12. Alihosseini, H., Dehghani, K., Kamali, J. Microstructure characterization, mechanical properties, compressibility and sintering behavior of Al-B4C nanocomposite powders, Advanced Powder Technology, 2017, 28(9), 2126-2134. https://doi.org/10.1016/j.apt.2017.05.019.
13. Şenel, M. C. and Gürbüz, M., The Influence of Particle Size and Reinforcement Rate of B4C on Mechanical and Microstructure Properties of Al-B4C Composites, Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020, 8(3), 1864-1876 . https://doi.org/10.29130/dubited.683876