AlSi16 alaşımının tribolojik performansına farklı morfolojilerdeki karbon yağlayıcılarının bor yağı içinde kullanımı

Öz

Bu çalışmada, malzemenin aşınma hızını azaltmak için katı yağlayıcı olarak kullanılan karbon bazlı yağlayıcıların etkisi incelenmiştir. Bu amaçla, grafit, karbon nanotüpler ve iki hidrotermal karbon, bor yağına katılarak kolloidal süspansiyonlar hazırlanmıştır. Konsantrasyon etkisini değerlendirmek için, her bir karbon yağlayıcının üç farklı oranı kullanılmıştır. Aşınma çalışmalarında, çeşitli uygulama alanlarında sık sık aşınmaya maruz kalan AlSi16 alaşımı, alt tabaka malzemesi olarak kullanılmıştır. Aşınma süreçleri ve sonuçları ayrıntılı olarak tartışılmıştır. Bu tartışmalar, özellikle daha küçük parçacık şekillerinin daha iyi sonuçlar ortaya koyduğunu, karbonlu yağlayıcı içeriği arttıkça alt tabaka malzemesinin aşınma hızının azaldığı gösterdi. Karbon nanotüpler ve iki hidrotermal karbon (ağırlıkça yüzde 0.2) kullanıldığında AlSi16 alt tabaka malzemesinin aşınma oranının %70'ten fazla azaldığı bulunmuştur.

Anahtar Kelimeler

• Triboloji
• karbonlu yağlayıcı
• Al-Si alaşımı
• aşınma mekanizması

The use of carbon lubricants with different morphologies in boron oil on tribological performance of ALSi16 alloy

Abstract

This study examined the impact of carbon-based lubricants, utilized as solid lubricants to reduce material wear rates. Graphite, carbon nanotubes, and two hydrothermal carbons were incorporated into boron oil to prepare colloidal suspensions for this objective. To evaluate the concentration effect, three different ratios of each carbon lubricant were used. AlSi16 alloy, which is frequently exposed to wear in a range of application areas, was used as the substrate material in wear studies. There was a detailed discussion of the wear processes and the results. These discussions showed that smaller particle shapes produced better results and that the wear rate of the substrate material decreased as the carbon lubricant content increased. It was found that the wear rate of the AlSi16 substrate material was reduced by more than 70% when carbon nanotubes and two hydrothermal carbons (0.2 weight percent) were used.

Keywords

• Tribology
• carbonaceous lubricant
• Al-Si alloy
• wear mechanism

Kaynakça

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