Investigation of the Joining of SiC-Reinforced Copper Matrix Composites via Friction Welding

Öz

Considering that it is inevitable to use dissimilar materials together with the rapidly developing industry, this makes it necessary to join materials with different properties with each other. From this point of view, friction welding method gives good results among solid state welding methods. In the study, the joining of Cu matrix composite material with SiC reinforcement at different rates, produced by using powder metallurgy method, among themselves and with pure copper (Cu) rods via friction welding method was investigated. Optical, SEM, hardness and strength tests were performed after the joining process. As a result of the analysis, it was concluded that it was difficult and problematic to join SiC-reinforced Cu matrix composites via friction welding.

Anahtar Kelimeler

• Friction welding
• SiC
• Copper matrix composite
• Microstructure

Sürtünme Kaynağı ile SiC Takviyeli Bakır Matrisli Kompozitlerin Birleştirilmesinin Araştırılması

Öz

Günümüzde hızla gelişen sanayi ile birlikte farklı özelliklere sahip malzemelerin birlikte kullanımı kaçınılmaz hâle gelmiştir. Bu durum farklı fiziksel ve mekanik özelliklere sahip malzemelerin birleştirilmesini zorunlu kılmaktadır. Bu bağlamda katı hâl kaynak yöntemleri arasında yer alan sürtünme kaynağı yöntemi başarılı sonuçlar vermektedir. Bu çalışmada toz metalurjisi yöntemiyle üretilen farklı oranlarda SiC takviyeli Cu matrisli kompozit malzemelerin hem kendi aralarında hem de saf bakır (Cu) çubuklarla sürtünme kaynağı yöntemiyle birleştirilmesi incelenmiştir. Kaynak işlemi sonrasında optik mikroskop, SEM, sertlik ve mekanik dayanım testleri uygulanmıştır. Yapılan analizler sonucunda SiC takviyeli Cu matrisli kompozitlerin sürtünme kaynağı ile birleştirilmesinin zor ve çeşitli problemler içerdiği sonucuna varılmıştır.

Anahtar Kelimeler

• Sürtünme kaynağı
• SiC
• Bakır matrisli kompozit
• mikroyapı

Kaynakça

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