PRODUCTION AND CHARACTERIZATION OF ALUMINUM BASED COMPOSITES BY POWDER METALLURGY METHOD FOR DIFFERENT MATRIX COMPOSITION AND AMOUNTH OF THE REINFORCEMENT

Yıl 2014, Cilt: 10 Sayı: 1, 45 - 54, 06.01.2015

Mehmet Ayvaz Hakan Çetinel

https://doi.org/10.18466/cbufbe.38279

Cited By: 2

Öz

In this study, effect of the different matrix composition and amounth of the boron carbide (B4C) reinforcment on the microstructure, mikrohardness and theoretical density were examined at aluminum based composites produced by powder metallurgy (P/M) method. For this purpose, three different matrix compositions (Al5Cu, Al5Mg and Al2.5Cu.2.Mg) and four different amount of the B4C by weight (% 5, 10, 20 and 30) were used. In addition to this, in order to investigate the effect of the production conditions, two different pressure (200 and 400 MPa) and three different sintering periods (60, 120 and 240 min.) were used. The theoretical density and microhardness of the produced aluminum based composites were measured and microstructure characterization was achieved via optic microscope

Anahtar Kelimeler

powder metallurgy, sintering, boron carbide, aluminum

FARKLI MATRİS KOMPOZİSYONLARI VE TAKVİYE ORANLARI İÇİN ALÜMİNYUM ESASLI KOMPOZİTLERİN TOZ METALURJİSİ YÖNTEMİYLE ÜRETİMİ VE KARAKTERİZASYONU

Öz

FARKLI MATRİS KOMPOZİSYONLARI VE TAKVİYE ORANLARI İÇİN ALÜMİNYUM ESASLI KOMPOZİTLERİN TOZ METALURJİSİ YÖNTEMİYLE ÜRETİMİ VE KARAKTERİZASYONU

  

Bu çalışmada, toz metalurjisi (T/M) yöntemiyle üretilen alüminyum esaslı kompozitlerde farklı matris kompozisyonlarının ve bor karbür (B4C) takviye oranlarının mikroyapı, mikrosertlik ve teorik yoğunluğa etkisi incelenmiştir. Bu amaçla, üç farklı matris kompozisyonu (Al5Cu, Al5Mg ve Al2.5Cu.2.Mg) ve ağırlıkça dört farklı B4C (% 5, 10, 20 ve 30) oranı kullanılmıştır. Ayrıca üretim şartlarının etkisinin incelenebilmesi amacıyla iki farklı basınç (200 ve 400 MPa) kullanılmıştır. Numuneler atmosferik gaz ortamında üç farklı sinterleme süresinde (60, 120 ve 240 dk.) sinterlenmiştir. Üretilen alüminyum esaslı kompozitlerin teorik yoğunluk, mikrosertlik değerleri ölçülmüştür ve optik mikroskop yardımıyla mikroyapı karakterizasyonu gerçekleştirilmiştir.

 

PRODUCTION AND CHARACTERIZATION OF ALUMINUM BASED COMPOSITES BY POWDER METALLURGY METHOD FOR DIFFERENT MATRIX COMPOSITION AND AMOUNTH OF THE REINFORCEMENT

 

In this study, effect of the different matrix composition and amounth of the boron carbide (B4C) reinforcment on the microstructure, mikrohardness and theoretical density were examined at aluminum based composites produced by powder metallurgy (P/M) method. For this purpose, three different matrix compositions (Al5Cu, Al5Mg and Al2.5Cu.2.Mg) and four different amount of the B4C by weight (% 5, 10, 20 and 30) were used. In addition to this, in order to investigate the effect of the production conditions, two different pressure (200 and 400 MPa) and three different sintering periods (60, 120 and 240 min.) were used. The theoretical density and microhardness of the produced aluminum based composites were measured and microstructure characterization was achieved via optic microscope.

 

 

Anahtar Kelimeler

Toz metalurjisi, sinterleme, bor karbür, alüminyum

Kaynakça

• [1] Deuis, R.L., Subramanian, C. and Yullup, H., “Dry Sliding Wear of Aluminium Composites- A Review”, Composites Science and Technology, 57: 415-435 (1997).
• [2] Saini, V.K., Khan, Z.A. and Siddiquee, A.N., “Advancements in Non-Conventional Machining of Aluminum Metal Matriz Composite Materials”, International Journal of Engineering Research & Technology, 1 (3): (2012).
• [3] Singla, M., Dwivedi, D.D., Singh, L. and Chawla, V., “Development of Aluminium Based Silicon Carbide Particulate Metal Matrix Composite”, Journal of Minerals & Materials Characterization & Engineering, 8 (6): 445-467 (2009)
• [4] Surappa, M.K., “Aluminium Matrix Composites: Challenges and Opportunities”,Sadhana, 28: 319-334 (2003).
• [5] Gokce, A. and Findik, F., “ Mechanical and Physical Properties of Sintered Aluminum Powders”, Journal of Achievements in Materials and Manufacturing Engineering, 30 (2): 157-164 (2008).
• [6] Gokce, A., Findik, F. and Kurt, A.O., “Microstructural Examination and Properties of Premixed Al-Cu-Mg Powder Metallurgy Alloy”, Metarials Characterization, 62: 730-735 (2011).
• [7] Oh, M.C. and Ahn, B. “The Effect of Mg composition on Sintering Behaviors and Mechanical Properties of Al-Cu-Mg Alloy”, 9. International Conference on Fracture & Strength of Solids, Jeju, Korea, (2013).
• [8] Kok. M., “Abrasive Wear of Al2O3 Particle Reinforced 2024 Aluminium Alloy Composites Fabricated by Vortex Method”, Composites: Part A, 37: 457-464 (2006)
• [9] Sahin, Y., “Abrasive Wear Behaviour of SiC/2024 Aluminium Composite”, Tribology International, 43: 939-943 (2010).
• [10] Tang, F., Wu, X., Ge, S., Ye, J., Zhu, H., Hagiwara, M. and Schoenung, J.M., “Dry Sliding Friction and Wear Properties of B4C ParticulateReinforced Al-5083 Matrix Composites”, Wear, 264: 555-561 (2008).
• [11] Hasirci, H. and Gul, F., “B4C /Al Kompozitlerin Takviye Hacim Oranına Bağlı Olarak Abrasif Aşınma Davranışlarının İncelenmesi”, SDU International Technologic Science, 2 (1): 15-21 (2010).
• [12] Hacioglu, T., Toptan, F., Daglilar, S. and Kerti, I., “ Al-B4Cp Kompozitlerinin Toz metalürjisi Yöntemi ile Üretimi ve Karakterizasyonu” IV. Uluslararası Bor Sempozyumu, Eskişehir, 303-307, (2009)