The effect of processing parameters on the wear properties Al6061/GNP composites produced by hot pressing

Yıl 2023, Cilt: 25 Sayı: 1, 1 - 12, 16.01.2023

Türker Türkoğlu , Sare Çelik , Nail Aslan , Enver Atik

https://doi.org/10.25092/baunfbed.1120301

Cited By: 3

Öz

In the present study, the effect of graphene nanoplatelet (GNP) reinforcement in Aluminum material at different rates was investigated on tribological properties. In this scope, the samples were produced by the hot press under determining different production parameters. The wear characteristics of the composites were determined using the ball-on disc wear test method. Ball on disc wear test showed that the Al6061/GNPs composite which was produced with the addition of 1 wt% GNPs, a sintering temperature of 600 °C, and a sintering time of 45 min, had the best wear resistance. Thanks to the GNPs reinforcement, a 61 % reduction in wear rate was achieved when compared to the non-reinforced Al material. The effects of the production parameters on the friction coefficient were investigated using the Taguchi method and it was determined that the most important parameter affecting the friction coefficients of the composites was the wt % GNPs addition. The results showed that the addition of GNPs is an important reinforcing material that reduces the wear rate when added to the structure at certain rates.

Anahtar Kelimeler

Aluminum, graphene nanoplatelet, composite, wear.

Destekleyen Kurum

Balikesir University-Scientific Research Projects Coordination Unit

Proje Numarası

BAUN-BAP 2020/038

Sıcak presleme yoluyla üretilen Al6061/GNP kompozitlerin aşınma özelliklerine üretim parametrelerinin etkisi

Öz

Bu çalışmada, alüminyum farklı oranlarda grafen nano plaka (GNP) ile takviyelerindirilerek elde edilen kompozit malzemenin tribolojik özellikleri incelenmiştir. Bu kapsamda, numuneler sıcak pres cihazında belirlenmiş olan parametreler altında üretilmiştir. Kompozitlerin aşınma karakteristikleri ball on disk aşınma test metodu kullanılarak belirlenmiştir. Ball on disk test sonuçları ağırlıkça %1 oranında GNP içeren, 600 °C sinterlenen, 45 dakika süresince sinterlenen Al6061/GNPs kopozitlerin en iyi aşınma direncine sahip olduğunu göstermiştir. GNP takviyesi sayesinde, takviyelendirilmemiş Al malzemesiyle kıyaslandığında aşınma oranında %61 azalma elde edilmiştir. Sürtünme katsayısı üzerinde üretim parametrelerinin etkisi Taguchi yöntemi ile araştırılmıştır ve kompozitlerin sürtünme katsayısı üzerinde en etkin parametrenin ağırlıkça GNP oranının olduğu belirlenmiştir. GNP'nin yapıya belli oranlarda eklendiğinde aşınma oranını azaltan önemli bir takviye malzemesi olduğunu sonuçlar göstermiştir.

Anahtar Kelimeler

Alüminyum, grafen nano plaka, kompozit, aşınma

Proje Numarası

BAUN-BAP 2020/038

Kaynakça

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