TY - JOUR T1 - Al-Si3N4 Toz Metal Kompozit Malzeme Üretimi ve Aşınma Davranışının Araştırılması AU - Arık, Halil PY - 2019 DA - December DO - 10.29109/gujsc.621116 JF - Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji JO - GUJS Part C PB - Gazi Üniversitesi WT - DergiPark SN - 2147-9526 SP - 776 EP - 787 VL - 7 IS - 4 LA - tr AB - ÖzetAlüminyum ve alaşımları başta otomotiv vehavacılık sektörü olmak üzere pek çok alanda tercih edilen metal ve alaşımgrubunu oluşturmaktadır. Alüminyumalaşımlarının üstün özellikleri yanında sertlik ve aşınma direnci gibiözelliklerinin bazı uygulamalarda beklentilerin uzağında kalması alüminyummatrisli kompozit malzeme üretimi çalışmalarını daha değerli ve gereklikılmaktadır. Bu çalışmada toz metalürjisi metodu ile üretilen α-Si3N4içeren alüminyum matrisli kompozit malzemelerde takviye elemanı oranınınkompozitin aşınma davranışı üzerine etkilerinin belirlenmesi amaçlanmıştır.Ağırlıkça %5, %10 ve %15 oranlarında α-Si3N4 içerenkarışım tozlar kalıp içerisinde 500 MPa basınç altında preslenerek 10 mm çaptave 15 mm boyda blok numuneler üretilmiştir. Daha sonra preslenen numuneleratmosfer kontrollü tüp fırında 2 saat süreyle 650 °C sıcaklıktasinterlenmiştir. Toz metal kompozit parçaların yoğunluk ve sertlik ölçümleri sonrasıpin-on-disk metoduyla kuru kayma aşınma testleri yapılmıştır. TestlerTIRIBOMETER T10/20 aşındırma test cihazında ASTM G99-05’ göre yapılmıştır.Aşındırma testleri 1,41 m/s kayma hızı ve 2000 m mesafede farklı yükler(5-10-15 N) altında tekrarlanmıştır. Alınan aşınma test sonuçları aynışartlarda üretilen matris malzemeye göre değişik oranlarda α-Si3N4takviyeli kompozitlerin daha iyi aşınma direncinde sahip olduğunugöstermektedir. En yüksek aşınma direnci ve sertlik değerleri ağırlıkça % 15silisyum nitrür içeren kompozit malzemede görülmüştür. KW - Toz Metalurjisi KW - Kompozit Malzeme KW - Al-Si3N4 KW - Aşınma Davranışı CR - KAYNAKLAR (REFERENCES) CR - [1] Rosso M. 2006, Ceramic and Metal Matrix Composites: Routes and Properties, Journal of Materials Processing Technology, 175: 364-375. CR - [2] Sahu P.S., Banchhor R., 2017. Effect of Different Reinforcement on Mechanical Properties of Aluminium Metal Matrix Composites, Res. J. Engineering Sci., Vol. 6 (7), 39-45. CR - [3] Mattli M.R., Matli R.R et all. 2019. Structural and Mechanical Properties of Amorphous Si3N4 Nanoparticles Reinforced Al Matrix Composites Prepared by Microwave Sintering, Ceramics, 2: 126–134. CR - [4] Mahajan G.V., Aher V.S. 2012. Composite Material: A Review over Current Development and Automotive Application, International Journal of Scientific and Research Publications, 2 (11), 1-5. CR - [5] Babalola P.O.,Bolu C.A., et all. 2014. 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