Öz
In this study, firstly, AA7075 metal powder which average particle size 43.9 µm were manufactured by using gas atomization method. Thereafter with mechanical alloying method which powder metallurgy manufacturing methods, 10% B4C particle reinforcements that average particle size of 49.5 µm by participating into AA7075 metal matrix composite powder mixtures were prepared. They were milled for different durations (0-8 hrs) in a high energy planetary ball mill. From these milled powders; 550°C and under pressure 500 MPa, composite materials were produced by the method of hot pressing. In SEM analysis, after 4 hrs with mechanical alloying method, B4C particles which were homogenously distrubuted into the matrix of AA7075 were seen. Powders size increased to 1 hr and then decrease. In order to determine produced composite material's microstructural properties SEM analysis and determine physical and mechanical properties, density test and hardness test was applied. As a result of the experiments, composite density increased to 1 hr and then decrease. The hardness of composite was increased with increasing milling time and the rate of reinforcement.
Anahtar Kelimeler
B4C mechanical alloying metal-matrix composite powder metallurgy
Kaynakça
- Acılar M. Investigation of production and wear behaviour of Al/SiC composites by vacuum infiltration technique, PhD Thesis, Gazi University, Ankara, Turkey, 44 – 62, 2002.
- Kumdalı F. The production of Al based composites reinforced with B 4 C by powder metallurgy, MSc thesis, Yıldız Technical University, İstanbul, Turkey, 1 – 2, 200 Varol T. The production of AA2024 matrix-B 4 C particle reinforced composites by powder metallurgy method and investigation of their properties, MSc thesis, Karadeniz Technical University, Trabzon, Turkey, 1 – 25, 2012.
- Canakci A. Manufacturing of AA2024 matrix-B 4 C particle reinforced composites by vortex method and investigation of their properties, PhD Thesis, Karadeniz Technical University, Trabzon, Turkey, 10 – 21, 2006.
- Canakci A, Arslan F and Varol T. Effect of volume fraction and size of B 4 C particles on production and microstructure properties of B 4 C reinforced aluminum alloy composites. Materials Science and Technology, 2013; 29: 954 – 9
- Varol T, Canakci A and Ozsahin S. Artificial neural network modeling to effect of reinforcement properties on the physical and mechanical properties of Al2024B 4 C composites produced by powder metallurgy. Composites: Part B, 2013; 54: 224 – 233.
- Canakci A, Varol T and Ozsahin S. Prediction of effect of volume fraction, compact pressure and milling time on properties of Al-Al 2 O 3 MMCs using neural networks. Metals and Materials International, 2013; 19: 519 – 526. Varol T and Canakci A, Effect of particle size and ratio of B 4 C reinforcement on properties and morphology of nanocrystalline Al2024-B 4 C composite powders. Powder Technology, 2013; 246: 462 – 472.
- Varol T and Canakci A. Effect of weight percentage and particle size of B 4 C reinforcement on physical and mechanical properties of powder metallurgy Al2024-B 4 C composites. Metals and Materials International, 2013; 19: 1227 – 12
- Canakci A, Varol T and Ertok S. The effect of mechanical alloying on Al 2 O 3 distribution and properties of Al 2 O 3 particle reinforced Al-MMCs. Science and Engineering of Composite Materials, 2012; 19: 227 – 235.
- Canakci A and Varol T. Production and microstructure of AA2024-B 4 C metal matrix composites by mechanical alloying method. Usak University Journal of Material Sciences, 2012; 1: 15 – 22.
Öz
In this study, firstly, AA7075 metal powder which average particle size 43.9 µm were manufactured by using gas atomization method. Thereafter with mechanical alloying method which powder metallurgy manufacturing methods, 10% B4C particle reinforcements that average particle size of 49.5 µm by participating into AA7075 metal matrix composite powder mixtures were prepared. They were milled for different durations (0-8 hrs) in a high energy planetary ball mill. From these milled powders; 550°C and under pressure 500 MPa, composite materials were produced by the method of hot pressing. In SEM analysis, after 4 hrs with mechanical alloying method, B4C particles which were homogenously distrubuted into the matrix of AA7075 were seen. Powders size increased to 1 hr and then decrease. In order to determine produced composite material's microstructural properties SEM analysis and determine physical and mechanical properties, density test and hardness test was applied. As a result of the experiments, composite density increased to 1 hr and then decrease. The hardness of composite was increased with increasing milling time and the rate of reinforcement.
Anahtar Kelimeler
B4C mechanical alloying metal-matrix composite powder metallurgy
Kaynakça
- Acılar M. Investigation of production and wear behaviour of Al/SiC composites by vacuum infiltration technique, PhD Thesis, Gazi University, Ankara, Turkey, 44 – 62, 2002.
- Kumdalı F. The production of Al based composites reinforced with B 4 C by powder metallurgy, MSc thesis, Yıldız Technical University, İstanbul, Turkey, 1 – 2, 200 Varol T. The production of AA2024 matrix-B 4 C particle reinforced composites by powder metallurgy method and investigation of their properties, MSc thesis, Karadeniz Technical University, Trabzon, Turkey, 1 – 25, 2012.
- Canakci A. Manufacturing of AA2024 matrix-B 4 C particle reinforced composites by vortex method and investigation of their properties, PhD Thesis, Karadeniz Technical University, Trabzon, Turkey, 10 – 21, 2006.
- Canakci A, Arslan F and Varol T. Effect of volume fraction and size of B 4 C particles on production and microstructure properties of B 4 C reinforced aluminum alloy composites. Materials Science and Technology, 2013; 29: 954 – 9
- Varol T, Canakci A and Ozsahin S. Artificial neural network modeling to effect of reinforcement properties on the physical and mechanical properties of Al2024B 4 C composites produced by powder metallurgy. Composites: Part B, 2013; 54: 224 – 233.
- Canakci A, Varol T and Ozsahin S. Prediction of effect of volume fraction, compact pressure and milling time on properties of Al-Al 2 O 3 MMCs using neural networks. Metals and Materials International, 2013; 19: 519 – 526. Varol T and Canakci A, Effect of particle size and ratio of B 4 C reinforcement on properties and morphology of nanocrystalline Al2024-B 4 C composite powders. Powder Technology, 2013; 246: 462 – 472.
- Varol T and Canakci A. Effect of weight percentage and particle size of B 4 C reinforcement on physical and mechanical properties of powder metallurgy Al2024-B 4 C composites. Metals and Materials International, 2013; 19: 1227 – 12
- Canakci A, Varol T and Ertok S. The effect of mechanical alloying on Al 2 O 3 distribution and properties of Al 2 O 3 particle reinforced Al-MMCs. Science and Engineering of Composite Materials, 2012; 19: 227 – 235.
- Canakci A and Varol T. Production and microstructure of AA2024-B 4 C metal matrix composites by mechanical alloying method. Usak University Journal of Material Sciences, 2012; 1: 15 – 22.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 27 Temmuz 2014 |
| Yayımlandığı Sayı | Yıl 2014 Cilt: 3 Sayı: 1 |