Wear properties of in-situ aluminum matrix composite reinforced with Al2O3

Erarslan Y., Keleşoğlu E., Küçüktürk G.

Materials Science and Technology Conference and Exhibition 2010, MS and T'10, Houston, TX, Amerika Birleşik Devletleri, 17 - 21 Ekim 2010, cilt.3, ss.2182-2188 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 3
  • Basıldığı Şehir: Houston, TX
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.2182-2188
  • Anahtar Kelimeler: Aluminum, Composite, In-situ, Wear
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Metal matrix composites (MMCs) offer several advantages over monolithic alloys with respect to strength/density ratio. Recently aluminum matrix composites (AMCs) are considered as candidate for the vehicle components subjected to wear. In this work we aimed to determine the wear character of an in-situ AMCs reinforced with Al2O3. For fabrication of the composite samples CuO powder was added to the stirring pure aluminum melt. Thereby a copper-alloyed aluminum matrix and Al2O3 particulate reinforcement were obtained. The wear properties of the samples were evaluated by means of pin-on-disc test against cast iron. CuO addition results in wear resistance due to increasing Al2O3 reinforcement as well as Cu dissolution in matrix. Dissolution of Cu in matrix activates also precipitation strengthening mechanism. With these characteristics the produced samples have application potential to the parts subjected to wear in automotive industry. Copyright © 2010 MS&T'10®.