Effect of friction stir processing on tribological properties of Al-Si alloys

13th International Conference on Tribology

Aktarer, S.M.^1 ; Sekban, D.M.^2 ; Yanar, H.^3 ; Purcek, G.^3

Department of Automotive Technology, RecepTayyip Erdogan University, Rize, Turkey^1

Department of Naval Architecture and Marine Engineering, Karadeniz Technical University, Trabzon, Turkey^2

Department of Mechanical Engineering, Karadeniz Technical University, Trabzon, Turkey^3

关键词: Al-12Si alloy;    Eutectic silicon particles;    Friction and wear properties;    Friction stir processing;    Si-particle;    Tribological properties;    Wear behaviors;    Wear mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/174/1/012061/pdf
DOI  :  10.1088/1757-899X/174/1/012061

来源: IOP

【 摘 要 】

As-cast Al-12Si alloy was processed by single-pass friction stir processing (FSP), and its effect on mainly friction and wear properties of processed alloy was studied in detail. The needle-shaped eutectic silicon particles were fragmented by intense plastic deformation and dynamic recrystallization during FSP. The fragmented and homogenously distributed Si particles throughout the improve the mechanical properties and wear behavior of Al-12Si alloy. The wear mechanisms for this improvement were examined and the possible reasons were discussed.